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Andrew Demchuk

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Mohammed A Almekhlafi; Simerpreet Bal; Fiona M Clement; Andrew M Demchuk; Michael D Hill; Bijoy K Menon; Sachin Mishra; Samuel Wiebe; John H Wong; Mayank Goyal
Malignant emboli on transcranial Doppler during carotid stenting predict postprocedure diffusion-weighted imaging lesions.
Mohammed A Almekhlafi; Andrew M Demchuk; Muneer Eesa; Bijoy K Menon; Mayank Goyal
Ultrashort imaging to reperfusion time interval arrests core expansion in endovascular therapy for acute ischemic stroke.
Thien J Huynh; Carlos S Kase; Alex Kiss; Ozlem Krischek; Cheemun Lum; Carlos A Molina; Vasantha Padma; David Rodriguez-Luna; Jayanta Roy; Yolanda Silva; Richard I Aviv; Rohit Bhatia; Jean-Martin Boulanger; Anna Czlonkowska; Andrew M Demchuk; Dar Dowlatshahi; Imanuel Dzialowski; David J Gladstone; Gord Gubitz; Michael D Hill
Spot sign number is the most important spot sign characteristic for predicting hematoma expansion using first-pass computed tomography angiography: analysis from the PREDICT study.

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2013: Mohammed A Almekhlafi; Simerpreet Bal; Fiona M Clement; Andrew M Demchuk; Michael D Hill; Bijoy K Menon; Sachin Mishra; Samuel Wiebe; John H Wong; Mayank Goyal
Malignant emboli on transcranial Doppler during carotid stenting predict postprocedure diffusion-weighted imaging lesions.
Stroke; a journal of cerebral circulation 2013;44(5):1317-22.
2013: Mohammed A Almekhlafi; Andrew M Demchuk; Muneer Eesa; Bijoy K Menon; Mayank Goyal
Ultrashort imaging to reperfusion time interval arrests core expansion in endovascular therapy for acute ischemic stroke.
Journal of neurointerventional surgery 2013;5 Suppl 1():i58-61.
2013: Thien J Huynh; Carlos S Kase; Alex Kiss; Ozlem Krischek; Cheemun Lum; Carlos A Molina; Vasantha Padma; David Rodriguez-Luna; Jayanta Roy; Yolanda Silva; Richard I Aviv; Rohit Bhatia; Jean-Martin Boulanger; Anna Czlonkowska; Andrew M Demchuk; Dar Dowlatshahi; Imanuel Dzialowski; David J Gladstone; Gord Gubitz; Michael D Hill
Spot sign number is the most important spot sign characteristic for predicting hematoma expansion using first-pass computed tomography angiography: analysis from the PREDICT study.
Stroke; a journal of cerebral circulation 2013;44(4):972-7.
2013: Joseph P Broderick; Ronald Budzik; Janice Carrozzella; Wayne M Clark; Bart M Demaerschalk; Andrew M Demchuk; Stefan T Engelter; Lydia D Foster; Mayank Goyal; Michael D Hill; L Scott Janis; Edward Jauch; Tudor G Jovin; Pooja Khatri; Tim W Malisch; Renée H Martin; Mikael Mazighi; Carlos A Molina; Yuko Y Palesch; Karla J Ryckborst; Wouter J Schonewille; Frank L Silver; Judith Spilker; Thomas A Tomsick; Rüdiger von Kummer; Bernard Yan; Sharon D Yeatts; Osama O Zaidat; Craig Anderson
Endovascular therapy after intravenous t-PA versus t-PA alone for stroke.
The New England journal of medicine 2013;368(10):893-903.
2013: Bijoy K Menon; Jayesh Modi; Helin Daniel Bai; Andrew M Demchuk; Mayank Goyal; Mark E Hudon; Timothy W J Watson
The ICV sign as a marker of increased cerebral blood transit time.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2013;40(2):187-91.
2013: Bijoy K Menon; Ferdinand Miteff; Billy O'Brien; Andrew Bivard; Andrew M Demchuk; Christopher R Levi; Xuewen Lu; Neil J Spratt; Mark W Parsons
Assessment of leptomeningeal collaterals using dynamic CT angiography in patients with acute ischemic stroke.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2013;33(3):365-71.
2013: Michael D Hill; Carol Kenney; Timothy W J Watson; Nicolas U Weir; Philip A Barber; Jean-Martin Boulanger; Alastair M Buchan; Andrew M Demchuk; Imanuel Dzialowski
Tissue Window in Stroke Thrombolysis study (TWIST): a safety study.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2013;40(1):17-20.
2012: Michael D Hill; Michael E Kelly; Timo Krings; Cheemun Lum; R Loch Macdonald; Renee H Martin; Cameron McDougall; David Mikulis; Geneviève Milot; Julien Poublanc; Frank L Silver; Karel G TerBrugge; Michael Tymianski; John H Wong; Roberta Anderson; Julie Bishop; Melford Boulton; Michael Chow; Wayne M Clark; Andrew M Demchuk; Robert Dodd; Ian Fleetwood; David Garman; Mayank Goyal; Thorsteinn Gunnarsson
Safety and efficacy of NA-1 in patients with iatrogenic stroke after endovascular aneurysm repair (ENACT): a phase 2, randomised, double-blind, placebo-controlled trial.
Lancet neurology 2012;11(11):942-50.
2012: Andrew M Demchuk; Bijoy Menon; Mayank Goyal
Imaging-based selection in acute ischemic stroke trials - a quest for imaging sweet spots.
Annals of the New York Academy of Sciences 2012;1268():63-71.
2012: Francois Moreau; Shiel Patel; Shelagh B Coutts; Andrew M Demchuk; Richard Frayne; Mayank Goyal; M Louis Lauzon; Cheryl R McCreary; Eric E Smith
Cavitation after acute symptomatic lacunar stroke depends on time, location, and MRI sequence.
Stroke; a journal of cerebral circulation 2012;43(7):1837-42.
2012: Simerpreet Bal; Andrew M Demchuk; Bijoy K Menon; Michael D Hill
Routine CT angiography in acute stroke does not delay thrombolytic therapy.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2012;39(4):499-501.
2012: Dar Dowlatshahi; Muneer Eesa; Richard Frayne; Michael D Hill; Sherif Idris; Manish Joshi; Jayme C Kosior; Suresh Subramaniam; Sarah Tymchuk; Richard I Aviv; Andrew M Demchuk; Peter Dickhoff
Planimetric hematoma measurement in patients with intraventricular hemorrhage: is total volume a preferred target for reliable analysis?
Stroke; a journal of cerebral circulation 2012;43(7):1961-3.
2012: Imanuel Dzialowski; Michael D Hill; Volker Puetz; Alastair M Buchan; Andrew M Demchuk
Does the application of X-ray contrast agents impair the clinical effect of intravenous recombinant tissue-type plasminogen activator in acute ischemic stroke patients?
Stroke; a journal of cerebral circulation 2012;43(6):1567-71.
2012: Andrew M Demchuk; Dar Dowlatshahi; Imanuel Dzialowski; David J Gladstone; Gord Gubitz; Michael D Hill; Carlos S Kase; Adam Kobayashi; Jayme C Kosior; Cheemun Lum; Carlos A Molina; Vasantha Padma; David Rodriguez-Luna; Jayanta Roy; Suresh Subramaniam; Sarah Tymchuk; Richard I Aviv; Rohit Bhatia; Yolanda Silva Blas; Jean-Martin Boulanger
Prediction of haematoma growth and outcome in patients with intracerebral haemorrhage using the CT-angiography spot sign (PREDICT): a prospective observational study.
Lancet neurology 2012;11(4):307-14.
2012: Shelagh B Coutts; Andrew M Demchuk; Mayank Goyal; Michael D Hill; Jayesh Modi; Shiel K Patel
CT/CT angiography and MRI findings predict recurrent stroke after transient ischemic attack and minor stroke: results of the prospective CATCH study.
Stroke; a journal of cerebral circulation 2012;43(4):1013-7.
2012: Elizabeth A Freiheit; Diane Galbraith; William A Ghali; David B Hogan; Merril Knudtson; Todd Anderson; Andrew M Demchuk; Misha Eliasziw; Peter Faris; Jillian S Parboosingh; Scott B Patten; Colleen J Maxwell
A dynamic view of depressive symptoms and neurocognitive change among patients with coronary artery disease.
Archives of general psychiatry 2012;69(3):244-55.
2012: Andrew D Barreto; Zhongxue Chen; Andrew M Demchuk; Zsolt Garami; Nicole R Gonzales; Andrei V Alexandrov; Clotilde Balucani; Kristian Barlinn; Jessica Lee; Pat Lyden; Sheryl Martin-Schild; Robert Mikulik; Renganayaki Pandurengan; Mohammad H Rahbar; Sean I Savitz; Loren Shen; April Sisson; Rebecca M Sugg; Georgios Tsivgoulis; Tzu-Ching Wu; James C Grotta
The argatroban and tissue-type plasminogen activator stroke study: final results of a pilot safety study.
Stroke; a journal of cerebral circulation 2012;43(3):770-5.
2012: Bijoy K Menon; Jayesh Modi; William F Morrish; John H Wong; Andrew Ah-Seng; Mohammed A Almekhlafi; Andrew M Demchuk; Mark E Hudon; Puneet Kochar; Mayank Goyal
Initial experience with a self-expanding retrievable stent for recanalization of large vessel occlusions in acute ischemic stroke.
Neuroradiology 2012;54(2):147-54.
2011: Nandavar Shobha; Eric Smith; Sarah Tymchuk; Rohit Bhatia; Matthew Boyko; Gopukumar Kumarpillai; Andrew M Demchuk
Outcomes in acute ischemic strokes presenting with disabling neurologic deficits without intracranial vascular occlusion.
International journal of stroke : official journal of the International Stroke Society 2011;6(5):392-7.
2011: Jayme C Kosior; Pranshu Sharma; Sarah Tymchuk; Mohamed Alzawahmah; Richard I Aviv; Andrew M Demchuk; Dar Dowlatshahi; Muneer Eesa; Richard Frayne; Michael D Hill; Sherif Idris
Quantomo: validation of a computer-assisted methodology for the volumetric analysis of intracerebral haemorrhage.
International journal of stroke : official journal of the International Stroke Society 2011;6(4):302-5.
2011: Rohit Bhatia; Shelagh B Coutts; Andrew M Demchuk; Imanuel Dzialowski; Mayank Goyal; Bijoy K Menon; Volker Puetz; Nandavar Shobha; Eric E Smith; Sarah Tymchuk; Tim Watson; Simerpreet S Bal; Philip A Barber
CT angiographic source images predict outcome and final infarct volume better than noncontrast CT in proximal vascular occlusions.
Stroke; a journal of cerebral circulation 2011;42(6):1575-80.
2011: Pawan K Ojha; Dawn M Pearson; Shobha Nandavar; Andrew M Demchuk
Aphemia as a presenting symptom in acute stroke.
Neurology India 2011;59(3):432-4.
2011: Bijoy K Menon; Volker Puetz; Puneet Kochar; Andrew M Demchuk
ASPECTS and other neuroimaging scores in the triage and prediction of outcome in acute stroke patients.
Neuroimaging clinics of North America 2011;21(2):407-23, xii.
2011: Steven R Messé; Scott E Kasner; Brett L Cucchiara; Andrew M Demchuk; David Tanne; Bichun Ouyang; Steven R Levine
Dosing errors did not have a major impact on outcome in the NINDS t-PA stroke study.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2011;20(3):236-40.
2011: Mohammed A Almekhlafi; Jayme C Kosior; Dar Dowlatshahi; Andrew M Demchuk
Spot sign and live-imaged dramatic intracerebral hematoma expansion.
Neurology 2011;76(14):1275-6; author reply 1276.
2011: Nandavar Shobha; Eric E Smith; Pablo Garcia Bermejo; Rohit Bhatia; Youngbin Choi; Andrew M Demchuk
Multimodal imaging tools for diagnosis of fat embolism.
Journal of emergencies, trauma, and shock 2011;4(2):306-8.
2011: Brett L Cucchiara; Scott Kasner; David Tanne; Steven Levine; Andrew M Demchuk; Steven R Messe; Lauren Sansing; Kennedy Lees; Patrick D Lyden
Validation assessment of risk scores to predict postthrombolysis intracerebral haemorrhage.
International journal of stroke : official journal of the International Stroke Society 2011;6(2):109-11.
2011: Bijoy K Menon; Michael D Hill; Muneer Eesa; Jayesh Modi; Rohit Bhatia; John Wong; Mark E Hudon; Will Morrish; Andrew M Demchuk; Mayank Goyal
Initial experience with the Penumbra Stroke System for recanalization of large vessel occlusions in acute ischemic stroke.
Neuroradiology 2011;53(4):261-6.
2011: Shelagh B Coutts; Andrew M Demchuk; Misha Eliasziw; Karyn Fischer; Michael D Hill
Final 2 year results of the vascular imaging of acute stroke for identifying predictors of clinical outcome and recurrent ischemic eveNts (VISION) study.
BMC cardiovascular disorders 2011;11():18.
2011: Mohammed H Alanazy; Bijoy K Menon; Andrew M Demchuk
Arm levitation sign in acute right frontoparietal infarct.
Neurosciences (Riyadh, Saudi Arabia) 2011;16(1):66-7.
2011: Mayank Goyal; Bijoy K Menon; Shelagh B Coutts; Michael D Hill; Andrew M Demchuk
Effect of baseline CT scan appearance and time to recanalization on clinical outcomes in endovascular thrombectomy of acute ischemic strokes.
Stroke; a journal of cerebral circulation 2011;42(1):93-7.
2010: Andrea Evans; Andrew M Demchuk; Sean P Symons; Dariush Dowlatshahi; David J Gladstone; Liying Zhang; Allan J Fox; Richard I Aviv
The spot sign is more common in the absence of multiple prior microbleeds.
Stroke; a journal of cerebral circulation 2010;41(10):2210-7.
2010: Kenneth Butcher; Thomas Jeerakathil; Derek Emery; Dar Dowlatshahi; Michael D Hill; Mukul Sharma; Brian Buck; Max Findlay; Ting Y Lee; Andrew M Demchuk
The Intracerebral Haemorrhage Acutely Decreasing Arterial Pressure Trial: ICH ADAPT.
International journal of stroke : official journal of the International Stroke Society 2010;5(3):227-33.
2010: Giselle DeVetten; Shelagh B Coutts; Michael D Hill; Mayank Goyal; Muneer Eesa; Brian O'Brien; Andrew M Demchuk; Adam Kirton
Acute corticospinal tract Wallerian degeneration is associated with stroke outcome.
Stroke; a journal of cerebral circulation 2010;41(4):751-6.
2010: Youngbin Choi; Maher Saqqur; Eileen Stewart; Caroline Stephenson; Jayanta Roy; Jean-Martin Boulanger; Shelagh Coutts; Andrew M Demchuk
Relative energy index of microembolic signal can predict malignant microemboli.
Stroke; a journal of cerebral circulation 2010;41(4):700-6.
2010: Nikolai Steffenhagen; Cynthia R Campos; Alexandre Y Poppe; Firosh Khan; Jayme C Kosior; Andrew M Demchuk; Michael D Hill; Shelagh B Coutts
Reliability of measuring lesion volumes in transient ischemic attack and minor stroke.
Stroke; a journal of cerebral circulation 2010;41(4):814-6.
2010: Thomas A Tomsick; Pooja Khatri; T Jovin; B Demaerschalk; T Malisch; Andrew M Demchuk; Michael D Hill; Edward Jauch; Judith Spilker; Joseph P Broderick
Equipoise among recanalization strategies.
Neurology 2010;74(13):1069-76.
2010: Robert K Kosior; M Louis Lauzon; Nikolai Steffenhagen; Jayme C Kosior; Andrew M Demchuk; Richard Frayne
Atlas-based topographical scoring for magnetic resonance imaging of acute stroke.
Stroke; a journal of cerebral circulation 2010;41(3):455-60.
2010: Mohamed M Ibrahim; Joseph Sebastian; Muhammad Hussain; Fawaz Al-Hussain; Ken Uchino; Carlos Molina; Khurshid Khan; Andrew M Demchuk; Andrei V Alexandrov; Maher Saqqur
Does current oral antiplatelet agent or subtherapeutic anticoagulation use have an effect on tissue-plasminogen-activator-mediated recanalization rate in patients with acute ischemic stroke?
Cerebrovascular diseases (Basel, Switzerland) 2010;30(5):508-13.
2010: Volker Puetz; Imanuel Dzialowski; Michael D Hill; Nikolai Steffenhagen; Shelagh B Coutts; Christine O'Reilly; Andrew M Demchuk
Malignant profile detected by CT angiographic information predicts poor prognosis despite thrombolysis within three hours from symptom onset.
Cerebrovascular diseases (Basel, Switzerland) 2010;29(6):584-91.
2009: Shelagh B Coutts; C O'Reilly; Michael D Hill; N Steffenhagen; A Y Poppe; M J Boyko; Volker Puetz; Andrew M Demchuk
Computed tomography and computed tomography angiography findings predict functional impairment in patients with minor stroke and transient ischaemic attack.
International journal of stroke : official journal of the International Stroke Society 2009;4(6):448-53.
2009: P N Sylaja; Imanuel Dzialowski; Volker Puetz; Michael Eliasziw; Michael D Hill; Andrea Krol; Christine O'Reilly; Andrew M Demchuk
Does intravenous rtPA benefit patients in the absence of CT angiographically visible intracranial occlusion?
Neurology India 2009;57(6):739-43.
2009: Bijoy K Menon; Andrew M Demchuk
Is acute stroke treatment heading towards a more endovascular approach?
Lancet neurology 2009;8(9):778-9.
2009: Brett L Cucchiara; Scott E Kasner; David Tanne; Steven R Levine; Andrew M Demchuk; Steven R Messe; Lauren Sansing; Kennedy R Lees; Patrick D Lyden
Factors associated with intracerebral hemorrhage after thrombolytic therapy for ischemic stroke: pooled analysis of placebo data from the Stroke-Acute Ischemic NXY Treatment (SAINT) I and SAINT II Trials.
Stroke; a journal of cerebral circulation 2009;40(9):3067-72.
2009: Andrew L Thompson; Jayme C Kosior; David J Gladstone; Julia J Hopyan; Sean P Symons; Francisco Romero; Imanuel Dzialowski; Jayanta Roy; Andrew M Demchuk; Richard I Aviv
Defining the CT angiography 'spot sign' in primary intracerebral hemorrhage.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2009;36(4):456-61.
2009: Mengzhou Xue; Morley D Hollenberg; Andrew M Demchuk; V Wee Yong
Relative importance of proteinase-activated receptor-1 versus matrix metalloproteinases in intracerebral hemorrhage-mediated neurotoxicity in mice.
Stroke; a journal of cerebral circulation 2009;40(6):2199-204.
2009: Nandavar Shobha; Eric E Smith; Andrew M Demchuk; Nicolas U Weir
Small vessel infarcts and microbleeds associated with radiation exposure.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2009;36(3):376-8.
2009: Ashraf Ederies; Andrew M Demchuk; Tze Chia; David J Gladstone; Dar Dowlatshahi; Gabriel Bendavit; Kelly Wong; Sean P Symons; Richard I Aviv
Postcontrast CT extravasation is associated with hematoma expansion in CTA spot negative patients.
Stroke; a journal of cerebral circulation 2009;40(5):1672-6.
2009: I Y L Tan; Andrew M Demchuk; J Hopyan; L Zhang; David J Gladstone; K Wong; M Martin; Sean P Symons; Allan J Fox; Richard I Aviv
CT angiography clot burden score and collateral score: correlation with clinical and radiologic outcomes in acute middle cerebral artery infarct.
AJNR. American journal of neuroradiology 2009;30(3):525-31.
2009: Maher Saqqur; Georgios Tsivgoulis; Carlos A Molina; Andrew M Demchuk; Ashfaq Shuaib; Andrei V Alexandrov
Residual flow at the site of intracranial occlusion on transcranial Doppler predicts response to intravenous thrombolysis: a multi-center study.
Cerebrovascular diseases (Basel, Switzerland) 2009;27(1):5-12.
2009: Hai Feng Zhu; Nancy N Newcommon; Mary Elizabeth Cooper; Teri L Green; Barbara Seal; Gary Klein; Nicolas U Weir; Shelagh B Coutts; Tim Watson; Philip A Barber; Andrew M Demchuk; Michael D Hill
Impact of a stroke unit on length of hospital stay and in-hospital case fatality.
Stroke; a journal of cerebral circulation 2009;40(1):18-23.
2009: Volker Puetz; Imanuel Dzialowski; Shelagh B Coutts; Michael D Hill; Andrea Krol; Christine O'Reilly; Mayank Goyal; Andrew M Demchuk
Frequency and clinical course of stroke and transient ischemic attack patients with intracranial nonocclusive thrombus on computed tomographic angiography.
Stroke; a journal of cerebral circulation 2009;40(1):193-9.
2008: Christina S Sutherland; Michael D Hill; AM Kaufmann; Joseph A Silvaggio; Andrew M Demchuk; Garnette R Sutherland
Recombinant factor VIIa plus surgery for intracerebral hemorrhage.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2008;35(5):567-72.
2008: Brett L Cucchiara; David Tanne; Steven R Levine; Andrew M Demchuk; Scott E Kasner
A risk score to predict intracranial hemorrhage after recombinant tissue plasminogen activator for acute ischemic stroke.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2008;17(6):331-3.
2008: Volker Puetz; Imanuel Dzialowski; Michael D Hill; Suresh Subramaniam; Padmavathy N Sylaja; Andrea Krol; Christine O'Reilly; Mark E Hudon; William Y Hu; Shelagh B Coutts; Philip A Barber; Timothy Watson; Jayanta Roy; Andrew M Demchuk
Intracranial thrombus extent predicts clinical outcome, final infarct size and hemorrhagic transformation in ischemic stroke: the clot burden score.
International journal of stroke : official journal of the International Stroke Society 2008;3(4):230-6.
2008: Maher Saqqur; Georgios Tsivgoulis; Carlos A Molina; Andrew M Demchuk; Muzaffar Siddiqui; José Alvarez-Sabín; Ken Uchino; Sergio Calleja; Andrei V Alexandrov
Symptomatic intracerebral hemorrhage and recanalization after IV rt-PA: a multicenter study.
Neurology 2008;71(17):1304-12.
2008: Michael S Bristow; Brett W Poulin; Jessica E Simon; Michael D Hill; Jayme C Kosior; Shelagh B Coutts; Richard Frayne; J Ross Mitchell; Andrew M Demchuk
Identifying lesion growth with MR imaging in acute ischemic stroke.
Journal of magnetic resonance imaging : JMRI 2008;28(4):837-46.
2008: Volker Puetz; P N Sylaja; Shelagh B Coutts; Michael D Hill; Imanuel Dzialowski; Pia Mueller; Ulf Becker; Gabriele Urban; Christine O'Reilly; Philip A Barber; Pranshu Sharma; Mayank Goyal; Georg Gahn; Rüdiger von Kummer; Andrew M Demchuk
Extent of hypoattenuation on CT angiography source images predicts functional outcome in patients with basilar artery occlusion.
Stroke; a journal of cerebral circulation 2008;39(9):2485-90.
2008: Shelagh B Coutts; Michael D Hill; Cynthia R Campos; Young B Choi; Suresh Subramaniam; Jayme C Kosior; Andrew M Demchuk
Recurrent events in transient ischemic attack and minor stroke: what events are happening and to which patients?
Stroke; a journal of cerebral circulation 2008;39(9):2461-6.
2008: Alexandre Y Poppe; Shelagh B Coutts; Andrew M Demchuk
Transient ischemic attack etiologic subtype and early risk of stroke.
Stroke; a journal of cerebral circulation 2008;39(7):e108; author reply e109-10.
2008: Blake D Murphy; Allan J Fox; Donald H Lee; Demetrios J Sahlas; Sandra Black; Matthew J Hogan; Shelagh B Coutts; Andrew M Demchuk; Mayank Goyal; Richard I Aviv; Sean Symons; Irene B Gulka; Vadim Beletsky; David Pelz; Richard K Chan; Ting-Yim Lee
White matter thresholds for ischemic penumbra and infarct core in patients with acute stroke: CT perfusion study.
Radiology 2008;247(3):818-25.
2008: Padmavathy N Sylaja; Shelagh B Coutts; Andrea Krol; Michael D Hill; Andrew M Demchuk
When to expect negative diffusion-weighted images in stroke and transient ischemic attack.
Stroke; a journal of cerebral circulation 2008;39(6):1898-900.
2008: Pooja Khatri; Michael D Hill; Yuko Y Palesch; Judith Spilker; Edward Jauch; Janice A Carrozzella; Andrew M Demchuk; Renee H. Martin; Patrick D Mauldin; Catherine Dillon; Karla J Ryckborst; Scott Janis; Thomas A Tomsick; Joseph P Broderick
Methodology of the Interventional Management of Stroke III Trial.
International journal of stroke : official journal of the International Stroke Society 2008;3(2):130-7.
2008: Maher Saqqur; Georgios Tsivgoulis; Carlos A Molina; Andrew M Demchuk; Zsolt Garami; Andrew Barreto; Konstantinos Spengos; Alex Forteza; Robert Mikulik; Vijay K Sharma; Alex Brunser; Patricia Martinez; Joan Montaner; Martin Kohrmann; Peter D Schellinger; Andrei V Alexandrov
Design of a PROspective multi-national CLOTBUST collaboration on reperfusion therapies for stroke (CLOTBUST-PRO).
International journal of stroke : official journal of the International Stroke Society 2008;3(1):66-72.
2008: Shelagh B Coutts; Michael Eliasziw; Michael D Hill; James N Scott; Suresh Subramaniam; Alastair M Buchan; Andrew M Demchuk
An improved scoring system for identifying patients at high early risk of stroke and functional impairment after an acute transient ischemic attack or minor stroke.
International journal of stroke : official journal of the International Stroke Society 2008;3(1):3-10.
2008: Andrew M Demchuk; Firosh Khan; Michael D Hill; Philip A Barber; Brian Silver; Suresh C Patel; Steven R Levine
Importance of leukoaraiosis on CT for tissue plasminogen activator decision making: evaluation of the NINDS rt-PA Stroke Study.
Cerebrovascular diseases (Basel, Switzerland) 2008;26(2):120-5.
2008: Padmavathy N Sylaja; Volker Puetz; Imanuel Dzialowski; Andrea Krol; Michael D Hill; Andrew M Demchuk
Prognostic value of CT angiography in patients with suspected vertebrobasilar ischemia.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2008;18(1):46-9.
2007: James Kennedy; Michael D Hill; Karla J Ryckborst; Michael Eliasziw; Andrew M Demchuk; Alastair M Buchan
Fast assessment of stroke and transient ischaemic attack to prevent early recurrence (FASTER): a randomised controlled pilot trial.
Lancet neurology 2007;6(11):961-9.
2007: Jayanta Roy; Naveed Akhtar; Timothy Watson; Andrew M Demchuk; Maher Saqqur
Transcranial Doppler microembolic signal monitoring is useful in diagnosis and treatment of carotid artery dissection: two case reports.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2007;17(4):350-2.
2007: Jean-Martin Boulanger; Shelagh B Coutts; Michael Eliasziw; Suresh Subramaniam; James Scott; Andrew M Demchuk
Diffusion-weighted imaging-negative patients with transient ischemic attack are at risk of recurrent transient events.
Stroke; a journal of cerebral circulation 2007;38(8):2367-9.
2007: Andrea L Krol; Imanuel Dzialowski; Jayanta Roy; Volker Puetz; Suresh Subramaniam; Shelagh B Coutts; Andrew M Demchuk
Incidence of radiocontrast nephropathy in patients undergoing acute stroke computed tomography angiography.
Stroke; a journal of cerebral circulation 2007;38(8):2364-6.
2007: Volker Puetz; Cynthia Resende Campos; Michael Eliasziw; Michael D Hill; Andrew M Demchuk
Assessing the benefits of hemicraniectomy: what is a favourable outcome?
Lancet neurology 2007;6(7):580; author reply 580-1.
2007: Steven R Messé; Scott E Kasner; Julio A Chalela; Brett L Cucchiara; Andrew M Demchuk; Michael D Hill; Steven Warach
CT-NIHSS mismatch does not correlate with MRI diffusion-perfusion mismatch.
Stroke; a journal of cerebral circulation 2007;38(7):2079-84.
2007: Michael D Hill; Andrew M Demchuk; Richard Frayne
Noninvasive imaging is improving but digital subtraction angiography remains the gold standard.
Neurology 2007;68(24):2057-8.
2007: Maher Saqqur; David A Zygun; Andrew M Demchuk
Role of transcranial Doppler in neurocritical care.
Critical care medicine 2007;35(5 Suppl):S216-23.
2007: Chul-Ho Sohn; Sung-Il Sohn; Hyuk-Won Chang; Andrew M Demchuk
Postcontrast time-of-flight MR angiography demonstrating collateral flow in acute stroke.
Stroke; a journal of cerebral circulation 2007;38(4):1132-3; author reply 1134.
2007: Maher Saqqur; Ken Uchino; Andrew M Demchuk; Carlos A Molina; Zsolt Garami; Sergio Calleja; Naveed Akhtar; Finton O Orouk; Abdul Salam; Ashfaq Shuaib; Andrei V Alexandrov
Site of arterial occlusion identified by transcranial Doppler predicts the response to intravenous thrombolysis for stroke.
Stroke; a journal of cerebral circulation 2007;38(3):948-54.
2007: Padmavathy N Sylaja; Shelagh B Coutts; Suresh Subramaniam; Michael D Hill; Michael Eliasziw; Andrew M Demchuk
Acute ischemic lesions of varying ages predict risk of ischemic events in stroke/TIA patients.
Neurology 2007;68(6):415-9.
2007: Julio A Chalela; Chelsea S Kidwell; Lauren M Nentwich; Marie Luby; John A Butman; Andrew M Demchuk; Michael D Hill; Nicholas Patronas; Lawrence L Latour; Steven Warach
Magnetic resonance imaging and computed tomography in emergency assessment of patients with suspected acute stroke: a prospective comparison.
Lancet 2007;369(9558):293-8.
2007: Maher Saqqur; Carlos A Molina; Abdul Salam; Muzaffar Siddiqui; Marc Ribo; Ken Uchino; Sergio Calleja; Zsolt Garami; Khurshid Khan; Naveed Akhtar; Fintan O'Rourke; Ashfaq Shuaib; Andrew M Demchuk; Andrei V Alexandrov
Clinical deterioration after intravenous recombinant tissue plasminogen activator treatment: a multicenter transcranial Doppler study.
Stroke; a journal of cerebral circulation 2007;38(1):69-74.
2007: Imanuel Dzialowski; J H Warwick Pexman; Philip A Barber; Andrew M Demchuk; Alastair M Buchan; Michael D Hill
Asymptomatic hemorrhage after thrombolysis may not be benign: prognosis by hemorrhage type in the Canadian alteplase for stroke effectiveness study registry.
Stroke; a journal of cerebral circulation 2007;38(1):75-9.
2006: Maher Saqqur; Michael D Hill; Andrei V Alexandrov; Jayanta Roy; Marcia Schebel; Andrea Krol; Zsolt Garami; Ashfaq Shuaib; Andrew M Demchuk
Derivation of power M-mode transcranial Doppler criteria for angiographic proven MCA occlusion.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2006;16(4):323-8.
2006: Suresh Subramaniam; Andrew M Demchuk; T Watson; Philip A Barber; Michael D Hill
Unexpected posthemorrhagic hydrocephalus in patients treated with rFVIIa.
Neurology 2006;67(6):1096.
2006: Michael D Hill; Andrew M Demchuk; T A Tomsick; Yuko Y Palesch; J P Broderick
Using the baseline CT scan to select acute stroke patients for IV-IA therapy.
AJNR. American journal of neuroradiology 2006;27(8):1612-6.
2006: Ting-Yim Lee; Blake D Murphy; Richard I Aviv; Allan J Fox; Sandra Black; Demetrios J Sahlas; Sean P Symons; Donald H Lee; David M Pelz; Irene Gulka; Richard Chan; Vadim Beletsky; vladimir hachinski; Matthew J Hogan; Mayank Goyal; Andrew M Demchuk; Shelagh B Coutts
Cerebral blood flow threshold of ischemic penumbra and infarct core in acute ischemic stroke: a systematic review.
Stroke; a journal of cerebral circulation 2006;37(9):2201; author reply 2203.
2006: Jacqueline A Pettersen; J H Warwick Pexman; Philip A Barber; Andrew M Demchuk; Alastair M Buchan; Michael D Hill
Insular cortical ischaemia does not independently predict acute hypertension or hyperglycaemia within 3 h of onset.
Journal of neurology, neurosurgery, and psychiatry 2006;77(7):885-7.
2006: B D Murphy; Allan J Fox; Donald H Lee; Demetrios J Sahlas; Sandra Black; Matthew J Hogan; Shelagh B Coutts; Andrew M Demchuk; M Goyal; Richard I Aviv; Sean P Symons; Irene Gulka; Vadim Beletsky; David M Pelz; vladimir hachinski; R Chan; Ting-Yim Lee
Identification of penumbra and infarct in acute ischemic stroke using computed tomography perfusion-derived blood flow and blood volume measurements.
Stroke; a journal of cerebral circulation 2006;37(7):1771-7.
2006: Andrew M Demchuk
Acute secondary stroke prevention trials in minor stroke/TIA: prime time for magnetic resonance imaging.
International journal of stroke : official journal of the International Stroke Society 2006;1(2):91-3.
2006: M Louis Lauzon; Robert J Sevick; Andrew M Demchuk; Richard Frayne
Stroke imaging at 3.0 T.
Neuroimaging clinics of North America 2006;16(2):343-66, xii.
2006: Andrew M Demchuk
The use of neurovascular imaging for triaging TIA and minor stroke: implications for therapy.
Current treatment options in cardiovascular medicine 2006;8(3):235-41.
2006: Imanuel Dzialowski; Michael D Hill; Shelagh B Coutts; Andrew M Demchuk; david kent; Olaf Wunderlich; Rüdiger von Kummer
Extent of early ischemic changes on computed tomography (CT) before thrombolysis: prognostic value of the Alberta Stroke Program Early CT Score in ECASS II.
Stroke; a journal of cerebral circulation 2006;37(4):973-8.
2006: Jean-Martin Boulanger; Shelagh B Coutts; Michael Eliasziw; A J Gagnon; Jessica E Simon; Suresh Subramaniam; Chul-Ho Sohn; James Scott; Andrew M Demchuk
Cerebral microhemorrhages predict new disabling or fatal strokes in patients with acute ischemic stroke or transient ischemic attack.
Stroke; a journal of cerebral circulation 2006;37(3):911-4.
2006: Padmavathy N Sylaja; Imanuel Dzialowski; Andrea Krol; Jayanta Roy; Paolo Federico; Andrew M Demchuk
Role of CT angiography in thrombolysis decision-making for patients with presumed seizure at stroke onset.
Stroke; a journal of cerebral circulation 2006;37(3):915-7.
2006: Anna I Tomanek; Shelagh B Coutts; Andrew M Demchuk; Mark E Hudon; William E Morrish; Robert J Sevick; Jessica E Simon; Richard Frayne; Alastair M Buchan; Michael D Hill
MR angiography compared to conventional selective angiography in acute stroke.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2006;33(1):58-62.
2006: Imanuel Dzialowski; Andrew M Demchuk; Shelagh B Coutts; Michael Hill; Marc Hudon; Ting-Yim Lee; Rüdiger von Kummer
Can we identify a CT-based tissue window for thrombolysis without CTP?
Annals of neurology 2006;59(2):437.
2005: Jacqueline A Pettersen; Michael D Hill; Andrew M Demchuk; William F Morrish; Mark E Hudon; William Hu; J Wong; Philip A Barber; Alastair M Buchan
Intra-arterial thrombolysis for retinal artery occlusion: the Calgary experience.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2005;32(4):507-11.
2005: Philip A Barber; Michael D Hill; Michael Eliasziw; Andrew M Demchuk; J H Warwick Pexman; Mark E Hudon; Anna I Tomanek; Richard Frayne; Alastair M Buchan
Imaging of the brain in acute ischaemic stroke: comparison of computed tomography and magnetic resonance diffusion-weighted imaging.
Journal of neurology, neurosurgery, and psychiatry 2005;76(11):1528-33.
2005: Andrea L Krol; Shelagh B Coutts; Jessica E Simon; Michael D Hill; Chul-Ho Sohn; Andrew M Demchuk
Perfusion MRI abnormalities in speech or motor transient ischemic attack patients.
Stroke; a journal of cerebral circulation 2005;36(11):2487-9.
2005: Andrew M Demchuk; Michael D Hill; Philip A Barber; Brian Silver; Suresh C Patel; Steven R Levine
Importance of early ischemic computed tomography changes using ASPECTS in NINDS rtPA Stroke Study.
Stroke; a journal of cerebral circulation 2005;36(10):2110-5.
2005: Michael S Bristow; Jessica E Simon; Robert A Brown; Michael Eliasziw; Michael D Hill; Shelagh B Coutts; Richard Frayne; Andrew M Demchuk; J Ross Mitchell
MR perfusion and diffusion in acute ischemic stroke: human gray and white matter have different thresholds for infarction.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2005;25(10):1280-7.
2005: Jessica E Simon; Michael S Bristow; Hong Lu; M Louis Lauzon; Robert A Brown; José V Manjón; Michael Eliasziw; Richard Frayne; Alastair M Buchan; Andrew M Demchuk; J Ross Mitchell
A novel method to derive separate gray and white matter cerebral blood flow measures from MR imaging of acute ischemic stroke patients.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2005;25(9):1236-43.
2005: Shelagh B Coutts; Michael D Hill; Jessica E Simon; Chul-Ho Sohn; James N Scott; Andrew M Demchuk
Silent ischemia in minor stroke and TIA patients identified on MR imaging.
Neurology 2005;65(4):513-7.
2005: Andrew M Demchuk; Maher Saqqur; Andrei V Alexandrov
Transcranial Doppler in acute stroke.
Neuroimaging clinics of North America 2005;15(3):473-80, ix.
2005: david kent; Michael D Hill; Robin Ruthazer; Shelagh B Coutts; Andrew M Demchuk; Imanuel Dzialowski; Olaf Wunderlich; Rüdiger von Kummer
"Clinical-CT mismatch" and the response to systemic thrombolytic therapy in acute ischemic stroke.
Stroke; a journal of cerebral circulation 2005;36(8):1695-9.
2005: Shelagh B Coutts; Jessica E Simon; Michael Eliasziw; Chul-Ho Sohn; Michael D Hill; Philip A Barber; Vanessa Palumbo; James Kennedy; Jayanta Roy; Alexis Gagnon; James N Scott; Alastair M Buchan; Andrew M Demchuk
Triaging transient ischemic attack and minor stroke patients using acute magnetic resonance imaging.
Annals of neurology 2005;57(6):848-54.
2005: Andrew M Demchuk; Shelagh B Coutts
Alberta Stroke Program Early CT Score in acute stroke triage.
Neuroimaging clinics of North America 2005;15(2):409-19, xii.
2005: Maher Saqqur; Andrew M Demchuk; Michael D Hill; Naeem Dean; Marcia Schebel; James Kennedy; Philip A Barber; Ashfaq Shuaib
Bedside emergency transcranial Doppler diagnosis of severe carotid disease using orbital window examination.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2005;15(2):138-43.
2005: Maher Saqqur; Ashfaq Shuaib; Andrei V Alexandrov; Michael D Hill; Sergio Calleja; Thomas A Tomsick; Joseph Broderick; Andrew M Demchuk
Derivation of transcranial Doppler criteria for rescue intra-arterial thrombolysis: multicenter experience from the Interventional Management of Stroke study.
Stroke; a journal of cerebral circulation 2005;36(4):865-8.
2005: Jean-Martin Boulanger; Shelagh B Coutts; Michael D Hill; Andrew M Demchuk; Alastair M Buchan
Use of magnetic resonance imaging in predicting further vascular events among patients with transient ischemic attacks.
Stroke; a journal of cerebral circulation 2005;36(3):526-8; author reply 526-8.
2005: Dawn Kleindorfer; Michael D Hill; Daniel Woo; Thomas A Tomsick; Arthur Pancioli; Brett Kissela; Andrew M Demchuk; David Losiewicz; Edward Jauch; Alexander Schneider; Andrew Ringer; Daniel Kanter; Joseph P Broderick
A description of Canadian and United States physician reimbursement for thrombolytic therapy administration in acute ischemic stroke.
Stroke; a journal of cerebral circulation 2005;36(3):682-7.
2005: Nicolas U Weir; Andrew M Demchuk; Alastair M Buchan; Michael D Hill
Stroke prevention. MATCHing therapy to the patient with TIA.
Postgraduate medicine 2005;117(1):26-30.
2004: Andrei V Alexandrov; Carlos A Molina; James C Grotta; Zsolt Garami; Shiela R Ford; Jose Alvarez-Sabin; Joan Montaner; Maher Saqqur; Andrew M Demchuk; Lemuel A Moyé; Michael D Hill; Anne W Wojner
Ultrasound-enhanced systemic thrombolysis for acute ischemic stroke.
The New England journal of medicine 2004;351(21):2170-8.
2004: Shelagh B Coutts; Michael H Lev; Michael Eliasziw; Luca Roccatagliata; Michael D Hill; lee schwamm; J H Warwick Pexman; Walter J Koroshetz; Mark E Hudon; Alastair M Buchan; R Gilberto Gonzalez; Andrew M Demchuk
ASPECTS on CTA source images versus unenhanced CT: added value in predicting final infarct extent and clinical outcome.
Stroke; a journal of cerebral circulation 2004;35(11):2472-6.
2004: Chelsea S Kidwell; Julio A Chalela; Jeffrey Saver; Sidney Starkman; Michael D Hill; Andrew M Demchuk; John A Butman; Nicholas Patronas; Jeffry R Alger; Lawrence L Latour; Marie L Luby; Alison E Baird; Megan C Leary; Margaret Tremwel; Bruce Ovbiagele; Andre Fredieu; Shuichi Suzuki; J Pablo Villablanca; Stephen Davis; Billy Dunn; Jason W Todd; Mustapha A Ezzeddine; Joseph Haymore; John K Lynch; Lisa Davis; Steven Warach
Comparison of MRI and CT for detection of acute intracerebral hemorrhage.
JAMA : the journal of the American Medical Association 2004;292(15):1823-30.
2004: Philip A Barber; Andrew M Demchuk; Michael D Hill; J H Warwick Pexman; Mark E Hudon; Richard Frayne; Alastair M Buchan
The probability of middle cerebral artery MRA flow signal abnormality with quantified CT ischaemic change: targets for future therapeutic studies.
Journal of neurology, neurosurgery, and psychiatry 2004;75(10):1426-30.
2004: Daniel Schlegel; David Tanne; Andrew M Demchuk; Steven R Levine; Scott E Kasner
Prediction of hospital disposition after thrombolysis for acute ischemic stroke using the National Institutes of Health Stroke Scale.
Archives of neurology 2004;61(7):1061-4.
2004: Shelagh B Coutts; Andrew M Demchuk; Philip A Barber; William Y Hu; Jessica E Simon; Alastair M Buchan; Michael D Hill
Interobserver variation of ASPECTS in real time.
Stroke; a journal of cerebral circulation 2004;35(5):e103-5.
2004: Andrei V Alexandrov; Andrew M Demchuk; W Scott Burgin; David J Robinson; James C Grotta
Ultrasound-enhanced thrombolysis for acute ischemic stroke: phase I. Findings of the CLOTBUST trial.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2004;14(2):113-7.
2004: J H Warwick Pexman; Michael D Hill; Alastair M Buchan; Andrew M Demchuk; Philip A Barber; Jessica E Simon; Shelagh B Coutts
Hyperacute stroke: experience essential when reading unenhanced CT scans.
AJNR. American journal of neuroradiology 2004;25(3):516; author reply 516-8.
2004: Mikael S Mouradian; Jennifer Rodgers; Jodi L Kashmere; Glen Jickling; Jennifer McCombe; Derek J Emery; Andrew M Demchuk; Ashfaq Shuaib
Can rt-PA be administered to the wrong patient? Two patients with somatoform disorder.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2004;31(1):99-101.
2004: Shelagh B Coutts; Philip A Barber; Andrew M Demchuk; Michael D Hill; J H Warwick Pexman; Mark E Hudon; Alastair M Buchan
Mild neurological symptoms despite middle cerebral artery occlusion.
Stroke; a journal of cerebral circulation 2004;35(2):469-71.
2004: Steven R Messé; David Tanne; Andrew M Demchuk; Brett L Cucchiara; Steven R Levine; Scott E Kasner
Dosing errors may impact the risk of rt-PA for stroke: the Multicenter rt-PA Acute Stroke Survey.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2004;13(1):35-40.
2004: Maher Saqqur; Naeem Dean; Marcia Schebel; Michael D Hill; Abdul Salam; Ashfaq Shuaib; Andrew M Demchuk
Improved detection of microbubble signals using power M-mode Doppler.
Stroke; a journal of cerebral circulation 2004;35(1):e14-7.
2004: Carlos A Molina; Andrei V Alexandrov; Andrew M Demchuk; Maher Saqqur; Ken Uchino; José Alvarez-Sabín
Improving the predictive accuracy of recanalization on stroke outcome in patients treated with tissue plasminogen activator.
Stroke; a journal of cerebral circulation 2004;35(1):151-6.
2003: Shelagh B Coutts; Michael D Hill; Andrew M Demchuk; Philip A Barber; J H Warwick Pexman; Alastair M Buchan
ASPECTS reading requires training and experience.
Stroke; a journal of cerebral circulation 2003;34(10):e179; author reply e179.
2003: Shelagh B Coutts; Jessica E Simon; Anna I Tomanek; Philip A Barber; Jean Chan; Mark E Hudon; J Ross Mitchell; Richard Frayne; Michael Eliasziw; Alastair M Buchan; Andrew M Demchuk
Reliability of assessing percentage of diffusion-perfusion mismatch.
Stroke; a journal of cerebral circulation 2003;34(7):1681-3.
2003: Michael D Hill; T Lye; H Moss; Philip A Barber; Andrew M Demchuk; Nancy J Newcommon; Teri L Green; C Kenney; A Cole-Haskayne; Alastair M Buchan
Hemi-orolingual angioedema and ACE inhibition after alteplase treatment of stroke.
Neurology 2003;60(9):1525-7.
2003: Shelagh B Coutts; Jessica E Simon; Mark E Hudon; Andrew M Demchuk
What is causing crescendo transient ischemic attacks?
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2003;30(2):171-3.
2003: Michael D Hill; Shelagh B Coutts; J H Warwick Pexman; Andrew M Demchuk
CTA source images in acute stroke.
Stroke; a journal of cerebral circulation 2003;34(4):835-7; author reply 835-7.
2003: Philip A Barber; Andrew M Demchuk; Jinjin Zhang; Scott E Kasner; Michael D Hill; Jörg Berrouschot; Erich Schmutzhard; Lutz Harms; Piero Verro; Derk W Krieger
Computed tomographic parameters predicting fatal outcome in large middle cerebral artery infarction.
Cerebrovascular diseases (Basel, Switzerland) 2003;16(3):230-5.
2003: Philip A Barber; Andrew M Demchuk; Lorenz Hirt; Alastair M Buchan
Biochemistry of ischemic stroke.
Advances in neurology 2003;92():151-64.
2002: Theodore H Wein; Susan L Hickenbottom; Lewis B Morgenstern; Andrew M Demchuk; James C Grotta
Safety of tissue plasminogen activator for acute stroke in menstruating women.
Stroke; a journal of cerebral circulation 2002;33(10):2506-8.
2002: Andrei V Alexandrov; Andrew M Demchuk; W Scott Burgin
Insonation method and diagnostic flow signatures for transcranial power motion (M-mode) Doppler.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2002;12(3):236-44.
2002: David Tanne; Andrew M Demchuk; Scott E Kasner
Intravenous thrombolysis for acute ischemic stroke: the phase IV data.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2002;11(3-4):137-47.
2002: David Tanne; Scott E Kasner; Andrew M Demchuk; Nira Koren-Morag; Sandra Hanson; Martin Grond; Steven R Levine
Markers of increased risk of intracerebral hemorrhage after intravenous recombinant tissue plasminogen activator therapy for acute ischemic stroke in clinical practice: the Multicenter rt-PA Stroke Survey.
Circulation 2002;105(14):1679-85.
2002: Ioannis Christou; Robert A Felberg; Andrew M Demchuk; W Scott Burgin; Marc D Malkoff; James C Grotta; Andrei V Alexandrov
Intravenous tissue plasminogen activator and flow improvement in acute ischemic stroke patients with internal carotid artery occlusion.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2002;12(2):119-23.
2002: Janice J Yang; Michael D Hill; William F Morrish; Mark E Hudon; Philip A Barber; Andrew M Demchuk; Robert J Sevick; Richard Frayne
Comparison of pre- and postcontrast 3D time-of-flight MR angiography for the evaluation of distal intracranial branch occlusions in acute ischemic stroke.
AJNR. American journal of neuroradiology 2002;23(4):557-67.
2002: Robert A Felberg; Ioannis Christou; Andrew M Demchuk; Marc D Malkoff; Andrei V Alexandrov
Screening for intracranial stenosis with transcranial Doppler: the accuracy of mean flow velocity thresholds.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2002;12(1):9-14.
2002: Michael D Hill; Philip A Barber; Andrew M Demchuk; Nancy J Newcommon; Andrea Cole-Haskayne; Karla J Ryckborst; Laurel Sopher; Allison Button; William Hu; Mark E Hudon; William F Morrish; Richard Frayne; Robert J Sevick; Alastair M Buchan
Acute intravenous--intra-arterial revascularization therapy for severe ischemic stroke.
Stroke; a journal of cerebral circulation 2002;33(1):279-82.
2002: Lewis B Morgenstern; Lara Staub; Wenyaw Chan; Theodore H Wein; L Kay Bartholomew; Mary King; Robert A Felberg; W Scott Burgin; Janet Groff; Susan L Hickenbottom; Kamaldeen Saldin; Andrew M Demchuk; Anjali Kalra; Anupma Dhingra; James C Grotta
Improving delivery of acute stroke therapy: The TLL Temple Foundation Stroke Project.
Stroke; a journal of cerebral circulation 2002;33(1):160-6.
2001: Michael D Hill; Philip A Barber; Andrew M Demchuk; Robert J Sevick; Richard Frayne; A M Buchan
Symptomatic hemorrhage after alteplase therapy not due to silent ischemia.
BMC neurology 2001;1():1.
2001: W Scott Burgin; Lara Staub; Wenyaw Chan; Theodore H Wein; Robert A Felberg; James C Grotta; Andrew M Demchuk; Susan L Hickenbottom; Lewis B Morgenstern
Acute stroke care in non-urban emergency departments.
Neurology 2001;57(11):2006-12.
2001: J H Warwick Pexman; Philip A Barber; Michael D Hill; Robert J Sevick; Andrew M Demchuk; Mark E Hudon; William Y Hu; Alastair M Buchan
Use of the Alberta Stroke Program Early CT Score (ASPECTS) for assessing CT scans in patients with acute stroke.
AJNR. American journal of neuroradiology 2001;22(8):1534-42.
2001: Scott E Kasner; Andrew M Demchuk; Jörg Berrouschot; Erich Schmutzhard; L Harms; Piero Verro; Julio A Chalela; R Abbur; H McGrade; Ioannis Christou; Derk W Krieger
Predictors of fatal brain edema in massive hemispheric ischemic stroke.
Stroke; a journal of cerebral circulation 2001;32(9):2117-23.
2001: Andrew M Demchuk; David Tanne; M D Hill; S E Kasner; S Hanson; M Grond; Steven R Levine
Predictors of good outcome after intravenous tPA for acute ischemic stroke.
Neurology 2001;57(3):474-80.
2001: Ioannis Christou; Robert A Felberg; Andrew M Demchuk; James C Grotta; W Scott Burgin; Marc D Malkoff; Andrei V Alexandrov
A broad diagnostic battery for bedside transcranial Doppler to detect flow changes with internal carotid artery stenosis or occlusion.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2001;11(3):236-42.
2001: Andrei V Alexandrov; W Scott Burgin; Andrew M Demchuk; Ashraf El-Mitwalli; James C Grotta
Speed of intracranial clot lysis with intravenous tissue plasminogen activator therapy: sonographic classification and short-term improvement.
Circulation 2001;103(24):2897-902.
2001: Lewis B Morgenstern; Andrew M Demchuk; D H Kim; RF Frankowski; James C Grotta
Rebleeding leads to poor outcome in ultra-early craniotomy for intracerebral hemorrhage.
Neurology 2001;56(10):1294-9.
2001: Philip A Barber; J Zhang; Andrew M Demchuk; Michael D Hill; Alastair M Buchan
Why are stroke patients excluded from TPA therapy? An analysis of patient eligibility.
Neurology 2001;56(8):1015-20.
2001: Andrew M Demchuk; W Scott Burgin; Ioannis Christou; Robert A Felberg; Philip A Barber; Michael D Hill; Andrei V Alexandrov
Thrombolysis in brain ischemia (TIBI) transcranial Doppler flow grades predict clinical severity, early recovery, and mortality in patients treated with intravenous tissue plasminogen activator.
Stroke; a journal of cerebral circulation 2001;32(1):89-93.
2001: Philip A Barber; Andrew M Demchuk; Mark E Hudon; J H Warwick Pexman; Michael D Hill; Alastair M Buchan
Hyperdense sylvian fissure MCA "dot" sign: A CT marker of acute ischemia.
Stroke; a journal of cerebral circulation 2001;32(1):84-8.
2000: Philip A Barber; Michael D Hill; Andrew M Demchuk; Alastair M Buchan
Doubts, fears and misconceptions. What is the future of thrombolysis in acute stroke?
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2000;27(4):283-7.
2000: Andrew M Demchuk
Hemicraniectomy is a promising treatment in ischemic stroke.
The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2000;27(4):274-7.
2000: Theodore H Wein; Lara Staub; Robert A Felberg; Susan L Hickenbottom; Wenyaw Chan; James C Grotta; Andrew M Demchuk; J Groff; L Kay Bartholomew; Lewis B Morgenstern
Activation of emergency medical services for acute stroke in a nonurban population: the T.L.L. Temple Foundation Stroke Project.
Stroke; a journal of cerebral circulation 2000;31(8):1925-8.
2000: Michael D Hill; Philip A Barber; Andrew M Demchuk; Robert J Sevick; Nancy J Newcommon; T Green; Alastair M Buchan
Building a "brain attack" team to administer thrombolytic therapy for acute ischemic stroke.
CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 2000;162(11):1589-93.
2000: P A Barber; Andrew M Demchuk; J Zhang; A M Buchan
Validity and reliability of a quantitative computed tomography score in predicting outcome of hyperacute stroke before thrombolytic therapy. ASPECTS Study Group. Alberta Stroke Programme Early CT Score.
Lancet 2000;355(9216):1670-4.
2000: Michael D Hill; Philip A Barber; J Takahashi; Andrew M Demchuk; Thomas E Feasby; Alastair M Buchan
Anaphylactoid reactions and angioedema during alteplase treatment of acute ischemic stroke.
CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 2000;162(9):1281-4.
2000: W Scott Burgin; Marc D Malkoff; Robert A Felberg; Andrew M Demchuk; Ioannis Christou; James C Grotta; Andrei V Alexandrov
Transcranial doppler ultrasound criteria for recanalization after thrombolysis for middle cerebral artery stroke.
Stroke; a journal of cerebral circulation 2000;31(5):1128-32.
2000: D A Dylewski; Andrew M Demchuk; Lewis B Morgenstern
Utility of magnetic resonance imaging in acute intracerebral hemorrhage.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2000;10(2):78-83.
2000: Andrei V Alexandrov; Robert A Felberg; Andrew M Demchuk; Ioannis Christou; W Scott Burgin; Marc D Malkoff; Anne W Wojner; James C Grotta
Deterioration following spontaneous improvement : sonographic findings in patients with acutely resolving symptoms of cerebral ischemia.
Stroke; a journal of cerebral circulation 2000;31(4):915-9.
2000: Andrei V Alexandrov; Andrew M Demchuk; Robert A Felberg; Ioannis Christou; Philip A Barber; W Scott Burgin; Marc D Malkoff; Anne W Wojner; James C Grotta
High rate of complete recanalization and dramatic clinical recovery during tPA infusion when continuously monitored with 2-MHz transcranial doppler monitoring.
Stroke; a journal of cerebral circulation 2000;31(3):610-4.
2000: David C Hess; Andrew M Demchuk; L M Brass; Frank M Yatsu
HMG-CoA reductase inhibitors (statins): a promising approach to stroke prevention.
Neurology 2000;54(4):790-6.
2000: Alastair M Buchan; Philip A Barber; Nancy J Newcommon; H G Karbalai; Andrew M Demchuk; K M Hoyte; Gary M Klein; Thomas E Feasby
Effectiveness of t-PA in acute ischemic stroke: outcome relates to appropriateness.
Neurology 2000;54(3):679-84.
2000: Andrei V Alexandrov; Andrew M Demchuk; Robert A Felberg; James C Grotta; D W Krieger
Intracranial clot dissolution is associated with embolic signals on transcranial Doppler.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2000;10(1):27-32.
2000: Andrew M Demchuk; Ioannis Christou; Theodore H Wein; Robert A Felberg; Marc D Malkoff; James C Grotta; Andrei V Alexandrov
Accuracy and criteria for localizing arterial occlusion with transcranial Doppler.
Journal of neuroimaging : official journal of the American Society of Neuroimaging 2000;10(1):1-12.
2000: Andrew M Demchuk; Ioannis Christou; Theodore H Wein; Robert A Felberg; Marc D Malkoff; James C Grotta; Andrei V Alexandrov
Specific transcranial Doppler flow findings related to the presence and site of arterial occlusion.
Stroke; a journal of cerebral circulation 2000;31(1):140-6.
1999: Andrew M Demchuk; David C Hess; L M Brass; Frank M Yatsu
Is cholesterol a risk factor for stroke?: Yes.
Archives of neurology 1999;56(12):1518-20; discussion 1524.
1999: Andrew M Demchuk; Theodore H Wein; Robert A Felberg; Ioannis Christou; Andrei V Alexandrov
Images in cardiovascular medicine. Evolution of rapid middle cerebral artery recanalization during intravenous thrombolysis for acute ischemic stroke.
Circulation 1999;100(22):2282-3.
1999: Andrei V Alexandrov; Andrew M Demchuk; Theodore H Wein; James C Grotta
Yield of transcranial Doppler in acute cerebral ischemia.
Stroke; a journal of cerebral circulation 1999;30(8):1604-9.
1999: Andrew M Demchuk; R A Felburg; Andrei V Alexandrov
Clinical recovery from acute ischemic stroke after early reperfusion of the brain with intravenous thrombolysis.
The New England journal of medicine 1999;340(11):894-5.
1999: Andrew M Demchuk; Lewis B Morgenstern; D W Krieger; T Linda Chi; W Hu; Theodore H Wein; R J Hardy; James C Grotta; A M Buchan
Serum glucose level and diabetes predict tissue plasminogen activator-related intracerebral hemorrhage in acute ischemic stroke.
Stroke; a journal of cerebral circulation 1999;30(1):34-9.