S B Coutts

Summary

Affiliation: University of Calgary
Country: Canada

Publications

  1. ncbi request reprint Hyperperfusion syndrome: toward a stricter definition
    Shelagh B Coutts
    Department of Clinical Neurosciences, University of Calgary, and Seaman Family MR Research Centre, Calgary, Alberta, Canada
    Neurosurgery 53:1053-58; discussion 1058-60. 2003
  2. ncbi request reprint Silent ischemia in minor stroke and TIA patients identified on MR imaging
    S B Coutts
    Seaman Family MR Centre, Foothills Hospital, Calgary, Alberta T2N 2T9, Canada
    Neurology 65:513-7. 2005
  3. doi request reprint Recurrent events in transient ischemic attack and minor stroke: what events are happening and to which patients?
    Shelagh B Coutts
    Department of Clinical Neurosciences, Room C1246, Foothills Medical Centre, 1403 29th St SW, Calgary, AB, T2N 2T9, Canada
    Stroke 39:2461-6. 2008
  4. ncbi request reprint ASPECTS on CTA source images versus unenhanced CT: added value in predicting final infarct extent and clinical outcome
    Shelagh B Coutts
    Seaman Family MR Centre, Foothills Hospital, Calgary Health Region, 1403 29th St NW, Calgary, Alberta T2N 2T9, Canada
    Stroke 35:2472-6. 2004
  5. ncbi request reprint Interobserver variation of ASPECTS in real time
    Shelagh B Coutts
    Seaman Family MR Centre, Calgary Health Region, Foothills Hospital, Calgary, Alberta, Canada
    Stroke 35:e103-5. 2004
  6. doi request reprint 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
    Shelagh B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, Calgary, AB, Canada
    Int J Stroke 3:3-10. 2008
  7. ncbi request reprint Mild neurological symptoms despite middle cerebral artery occlusion
    Shelagh B Coutts
    Department of Clinical Neurosciences, University of Calgary, Alberta T2N 2T9, Canada
    Stroke 35:469-71. 2004
  8. ncbi request reprint Syncope and cerebral hypoperfusion
    Shelagh B Coutts
    Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
    Neurology 60:2011. 2003
  9. ncbi request reprint Reliability of assessing percentage of diffusion-perfusion mismatch
    Shelagh B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, Calgary, Alberta T2N 2T9, Canada
    Stroke 34:1681-3. 2003
  10. doi request reprint Computed tomography and computed tomography angiography findings predict functional impairment in patients with minor stroke and transient ischaemic attack
    S B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, AB, Canada
    Int J Stroke 4:448-53. 2009

Collaborators

Detail Information

Publications42

  1. ncbi request reprint Hyperperfusion syndrome: toward a stricter definition
    Shelagh B Coutts
    Department of Clinical Neurosciences, University of Calgary, and Seaman Family MR Research Centre, Calgary, Alberta, Canada
    Neurosurgery 53:1053-58; discussion 1058-60. 2003
    ..Hyperperfusion syndrome is a rare and potentially devastating complication of carotid endarterectomy or carotid artery angioplasty and stenting. With the advent of new imaging techniques, we reviewed our experience with this phenomenon...
  2. ncbi request reprint Silent ischemia in minor stroke and TIA patients identified on MR imaging
    S B Coutts
    Seaman Family MR Centre, Foothills Hospital, Calgary, Alberta T2N 2T9, Canada
    Neurology 65:513-7. 2005
    ..With patients with minor stroke and TIA having a higher risk of recurrent clinical events, the authors examined whether patients with minor stroke and TIA also had a high rate of asymptomatic lesions on repeat MRI scanning...
  3. doi request reprint Recurrent events in transient ischemic attack and minor stroke: what events are happening and to which patients?
    Shelagh B Coutts
    Department of Clinical Neurosciences, Room C1246, Foothills Medical Centre, 1403 29th St SW, Calgary, AB, T2N 2T9, Canada
    Stroke 39:2461-6. 2008
    ..Clinical trials are needed to assess acute treatment options in these patients. We sought to evaluate the type of recurrent events and to identify which subsets of patients are at risk for recurrent events...
  4. ncbi request reprint ASPECTS on CTA source images versus unenhanced CT: added value in predicting final infarct extent and clinical outcome
    Shelagh B Coutts
    Seaman Family MR Centre, Foothills Hospital, Calgary Health Region, 1403 29th St NW, Calgary, Alberta T2N 2T9, Canada
    Stroke 35:2472-6. 2004
    ..CT angiography-source images (CTA-SI) predict final infarct volume. We examined whether the final infarct ASPECTS and clinical outcome were more related to acute CTA-SI ASPECTS than to the acute noncontrast CT (NCCT) ASPECTS...
  5. ncbi request reprint Interobserver variation of ASPECTS in real time
    Shelagh B Coutts
    Seaman Family MR Centre, Calgary Health Region, Foothills Hospital, Calgary, Alberta, Canada
    Stroke 35:e103-5. 2004
    ..We sought to assess the reliability of the score when performed in real time as compared with an expert rating performed at a later time point...
  6. doi request reprint 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
    Shelagh B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, Calgary, AB, Canada
    Int J Stroke 3:3-10. 2008
    ..Modern imaging of the brain was not included. The present study quantified the added value of magnetic resonance imaging (MRI) factors to the ABCD(2) tool...
  7. ncbi request reprint Mild neurological symptoms despite middle cerebral artery occlusion
    Shelagh B Coutts
    Department of Clinical Neurosciences, University of Calgary, Alberta T2N 2T9, Canada
    Stroke 35:469-71. 2004
    ..Only a small percentage of stroke patients are treated with thrombolytic therapy. We sought to determine whether vessel occlusion in mild strokes represented a new target population for interventional therapy...
  8. ncbi request reprint Syncope and cerebral hypoperfusion
    Shelagh B Coutts
    Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
    Neurology 60:2011. 2003
  9. ncbi request reprint Reliability of assessing percentage of diffusion-perfusion mismatch
    Shelagh B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, Calgary, Alberta T2N 2T9, Canada
    Stroke 34:1681-3. 2003
    ..The present study sought to estimate the reliability of assessing the percentage of DWI-PWI mismatch...
  10. doi request reprint Computed tomography and computed tomography angiography findings predict functional impairment in patients with minor stroke and transient ischaemic attack
    S B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, AB, Canada
    Int J Stroke 4:448-53. 2009
    ..We hypothesised that noncontrast computed tomography and computed tomography angiography findings in minor stroke and transient ischaemic attack patients would also predict functional outcome...
  11. ncbi request reprint Acute ischemic lesions of varying ages predict risk of ischemic events in stroke/TIA patients
    P N Sylaja
    Calgary Stroke Program, University of Calgary, Calgary, Alberta, Canada T2N 2T9
    Neurology 68:415-9. 2007
    ..Our goal was to evaluate whether the presence of ischemic lesions of varying ages identified by DWI and apparent diffusion coefficient (ADC) suggests a higher risk of future ischemic events...
  12. doi request reprint Frequency and clinical course of stroke and transient ischemic attack patients with intracranial nonocclusive thrombus on computed tomographic angiography
    Volker Puetz
    Calgary Stroke Program, Department of Clinical Neurosciences, Foothills Medical Centre, Room 1162, University of Calgary, Calgary, Canada
    Stroke 40:193-9. 2009
    ..We sought to determine the frequency and clinical course of patients with acute ischemic stroke or transient ischemic attack (TIA) who had intracranial nonocclusive thrombus (iNOT) on CT angiography (CTA)...
  13. ncbi request reprint The ASPIRE approach for TIA risk stratification
    S B Coutts
    Calgary Stroke Program, University of Calgary, Calgary Department of Clinical Neurosciences, University of Calgary, Calgary
    Can J Neurol Sci 38:78-81. 2011
    ..We assessed the ability of the ASPIRE approach to identify patients at risk for stroke...
  14. ncbi request reprint Triaging transient ischemic attack and minor stroke patients using acute magnetic resonance imaging
    Shelagh B Coutts
    Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, Calgary, Alberta, Canada
    Ann Neurol 57:848-54. 2005
    ....
  15. doi request reprint Intracranial thrombus extent predicts clinical outcome, final infarct size and hemorrhagic transformation in ischemic stroke: the clot burden score
    Volker Puetz
    University of Calgary, Department of Clinical Neurosciences, Calgary Stroke Program, Canada
    Int J Stroke 3:230-6. 2008
    ..In ischemic stroke, functional outcomes vary depending on site of intracranial occlusion. We tested the prognostic value of a semiquantitative computed tomography angiography-based clot burden score...
  16. doi request reprint When to expect negative diffusion-weighted images in stroke and transient ischemic attack
    P N Sylaja
    Calgary Stroke Program, Department of Clinical Neurosciences, Foothills Medical Centre, Room 1162, University of Calgary, Alberta, Canada
    Stroke 39:1898-900. 2008
    ..The frequency of DWI negative cerebral ischemia and clinical factors associated with such a circumstance is not well understood...
  17. ncbi request reprint Extent of early ischemic changes on computed tomography (CT) before thrombolysis: prognostic value of the Alberta Stroke Program Early CT Score in ECASS II
    Imanuel Dzialowski
    Department of Clinical Neurosciences, Calgary Stroke Program, University of Calgary, Alberta, Canada
    Stroke 37:973-8. 2006
    ..We hypothesized that dichotomized ASPECTS predicts response to intravenous thrombolysis and incidence of secondary hemorrhage within 6 hours of stroke onset...
  18. ncbi request reprint MR perfusion and diffusion in acute ischemic stroke: human gray and white matter have different thresholds for infarction
    Michael S Bristow
    Department of Electrical and Computer Engineering, University of Calgary, Alberta, Canada
    J Cereb Blood Flow Metab 25:1280-7. 2005
    ..This study suggests that tissue-specific analysis of perfusion and diffusion imaging is required to accurately predict tissue at risk of infarction in acute ischemic stroke...
  19. ncbi request reprint What is causing crescendo transient ischemic attacks?
    Shelagh B Coutts
    Seaman Family MR Centre, Foothills Medical Centre, Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
    Can J Neurol Sci 30:171-3. 2003
    ..We discuss a case report from a patient who had symptoms of transient neurological deficits in the presence of a chronic subdural hematoma and severe carotid stenosis. Multi-modality imaging was used to guide management...
  20. ncbi request reprint Alberta Stroke Program Early CT Score in acute stroke triage
    Andrew M Demchuk
    Department of Clinical Neurosciences, Foothills Medical Centre, University of Calgary, Calgary, AB, Canada
    Neuroimaging Clin N Am 15:409-19, xii. 2005
    ..CT is likely to remain the workhorse of acute stroke imaging for some time to come...
  21. doi request reprint Diffusion and perfusion MR imaging of acute ischemic stroke
    Ashley D Harris
    Department of Radiology, University of Calgary, Calgary, Alberta, T2N 2T9 Canada
    Magn Reson Imaging Clin N Am 17:291-313. 2009
    ....
  22. ncbi request reprint MR angiography compared to conventional selective angiography in acute stroke
    Anna I Tomanek
    Seaman Family MR Research Centre, University of Calgary, Calgary, AB Canada
    Can J Neurol Sci 33:58-62. 2006
    ..The purpose of this study was to determine the accuracy of MRA in evaluation of intracranial vessels in acute stroke and transient ischemic attack (TIA) patients..
  23. doi request reprint Identifying lesion growth with MR imaging in acute ischemic stroke
    Michael S Bristow
    Department of Radiology, University of Calgary, Calgary, Alberta, Canada
    J Magn Reson Imaging 28:837-46. 2008
    ..To determine whether different MR diffusion- and perfusion-weighted imaging (DWI and PWI) parameters are important in distinguishing lesion growth from the acute lesion and from oligemia...
  24. doi request reprint Acute corticospinal tract Wallerian degeneration is associated with stroke outcome
    Giselle DeVetten
    Seaman Family MR Research Centre, Foothills Medical Centre, Alberta Health Services, Alberta, Canada
    Stroke 41:751-6. 2010
    ..In this study we test the hypothesis that early diffusion changes also occur in the corticospinal tract (CST) of adults after stroke and that these lesions are associated with poor outcome...
  25. ncbi request reprint Perfusion MRI abnormalities in speech or motor transient ischemic attack patients
    Andrea L Krol
    Seaman Family MR Centre, Foothills Medical Centre, Calgary Health Region, Calgary, Alberta, Canada
    Stroke 36:2487-9. 2005
    ..One possible mechanism of neurological worsening is the presence of perfusion abnormalities. We sought to identify what proportion of TIA patients had evidence of perfusion abnormalities on MRI...
  26. doi request reprint Predicting recurrent stroke after minor stroke and transient ischemic attack
    Philippe Couillard
    Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
    Expert Rev Cardiovasc Ther 7:1273-81. 2009
    ..The need for identification of the cause of the initial event, allowing therapies to be tailored to the individual patient, is discussed...
  27. pmc Do all ischemic stroke subtypes benefit from organized inpatient stroke care?
    E E Smith
    Calgary Stroke Program, Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada T2N 2T9
    Neurology 75:456-62. 2010
    ..We analyzed the effect of organized stroke care in all stroke subtypes in a longitudinal cohort study using data from the Registry of the Canadian Stroke Network...
  28. doi request reprint Sleep apnea in patients with transient ischemic attack and minor stroke: opportunity for risk reduction of recurrent stroke?
    Wesley Chan
    Calgary Stroke Program, Faculty of Medicine, University of Calgary, Alberta, Canada
    Stroke 41:2973-5. 2010
    ..Obstructive sleep apnea (OSA) may increase this risk. The objectives of our study were to determine the prevalence and severity of OSA and its clinical presentation in this population...
  29. doi request reprint Impact of a stroke unit on length of hospital stay and in-hospital case fatality
    Hai Feng Zhu
    Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Foothills Hospital, Rm 1242A, 1403 29 Street NW, Calgary, Alberta, T2N 2T9, Canada
    Stroke 40:18-23. 2009
    ..In 2001, a multidisciplinary stroke unit was opened at our institution. We observed whether a stroke unit reduces length of stay and in-hospital case fatality when compared to admission to a general neurology/medical ward...
  30. ncbi request reprint ASPECTS reading requires training and experience
    Shelagh B Coutts
    Stroke 34:e179; author reply e179. 2003
  31. ncbi request reprint Systematic review of associations between the presence of acute ischemic lesions on diffusion-weighted imaging and clinical predictors of early stroke risk after transient ischemic attack
    Jessica N E Redgrave
    Stroke Prevention Research Unit, Department of Clinical Neurology, Radcliffe Infirmary, Oxford, UK
    Stroke 38:1482-8. 2007
    ....
  32. ncbi request reprint Hyperacute stroke: experience essential when reading unenhanced CT scans
    J H Warwick Pexman
    AJNR Am J Neuroradiol 25:516; author reply 516-8. 2004
  33. ncbi request reprint Incidence of radiocontrast nephropathy in patients undergoing acute stroke computed tomography angiography
    Andrea L Krol
    Stroke 38:2364-6. 2007
    ..We investigated the incidence of contrast-induced renal impairment in these populations...
  34. ncbi request reprint Diffusion-weighted imaging-negative patients with transient ischemic attack are at risk of recurrent transient events
    Jean Martin Boulanger
    Stroke 38:2367-9. 2007
    ..We assessed the implication of negative diffusion-weighted imaging on a baseline MRI in predicting subsequent TIA...
  35. ncbi request reprint "Clinical-CT mismatch" and the response to systemic thrombolytic therapy in acute ischemic stroke
    David M Kent
    Institute for Clinical Research and Health Policy Studies, Department of Medicine, Tufts New England Medical Center, Tufts University School of Medicine, Boston, MA, USA
    Stroke 36:1695-9. 2005
    ..We explored this hypothesis using a combined database including 4 major clinical trials of intravenous (IV) thrombolytic therapy...
  36. doi request reprint White matter thresholds for ischemic penumbra and infarct core in patients with acute stroke: CT perfusion study
    Blake D Murphy
    Department of Imaging, Lawson Health Research Institute, London, Ontario, Canada
    Radiology 247:818-25. 2008
    ....
  37. doi request reprint Transient ischemic attack etiologic subtype and early risk of stroke
    Alexandre Y Poppe
    Stroke 39:e108; author reply e109-10. 2008
  38. ncbi request reprint CTA source images in acute stroke
    Michael D Hill
    Stroke 34:835-7; author reply 835-7. 2003
  39. doi request reprint Extent of hypoattenuation on CT angiography source images predicts functional outcome in patients with basilar artery occlusion
    Volker Puetz
    University of Technology Dresden, Department of Neurology, Dresden University Stroke Center, Fetscherstrasse 74, 01307 Dresden, Germany
    Stroke 39:2485-90. 2008
    ..We tested the validity of a novel CT score, the posterior circulation Acute Stroke Prognosis Early CT score (pc-ASPECTS)...
  40. ncbi request reprint Cerebral microhemorrhages predict new disabling or fatal strokes in patients with acute ischemic stroke or transient ischemic attack
    Jean Martin Boulanger
    Clinique Neuro Rive Sud, 4896 Blvd Taschereau 250, Greenfield Park, Provinvr of Quebec, Canada, J4V 2J2
    Stroke 37:911-4. 2006
    ..Cerebral microhemorrhages (MHs) are common among patients presenting with acute ischemic stroke and may predict both subsequent ischemic and hemorrhagic strokes...
  41. ncbi request reprint Can the ischemic penumbra be identified on noncontrast CT of acute stroke?
    Keith W Muir
    Division of Clinical Neurosciences, University of Glasgow, Glasgow, Scotland, UK
    Stroke 38:2485-90. 2007
    ..Early ischemic changes on noncontrast CT in acute stroke include both hypoattenuation and brain swelling, which may have different pathophysiological significance...
  42. ncbi request reprint Cerebral blood flow threshold of ischemic penumbra and infarct core in acute ischemic stroke: a systematic review
    Ting Yim Lee
    Stroke 37:2201; author reply 2203. 2006