title: Have clinicians adopted the use of brain MRI for patients with TIA and minor stroke?
abstract: BACKGROUND
  Use of MRI with diffusion-weighted imaging (DWI) can identify infarcts in 30%-50% of patients with TIA. Previous guidelines have indicated that MRI-DWI is the preferred imaging modality for patients with TIA. We assessed the frequency of MRI utilization and predictors of MRI performance.
  
  
  METHODS
  A review of TIA and minor stroke patients evaluated at Veterans Affairs hospitals was conducted with regard to medical history, use of diagnostic imaging within 2 days of presentation, and in-hospital care variables. Chart abstraction was performed in a subset of hospitals to assess clinical variables not available in the administrative data.
  
  
  RESULTS
  A total of 7,889 patients with TIA/minor stroke were included. Overall, 6,694 patients (84.9%) had CT or MRI, with 3,396/6,694 (50.7%) having MRI. Variables that were associated with increased odds of CT performance were age >80 years, prior stroke, history of atrial fibrillation, heart failure, coronary artery disease, anxiety, and low hospital complexity, while blood pressure >140/90 mm Hg and high hospital complexity were associated with increased likelihood of MRI. Diplopia (87% had MRI, p = 0.03), neurologic consultation on the day of presentation (73% had MRI, p < 0.0001), and symptom duration of >6 hours (74% had MRI, p = 0.0009) were associated with MRI performance.
  
  
  CONCLUSIONS
  Within a national health system, about 40% of patients with TIA/minor stroke had MRI performed within 2 days. Performance of MRI appeared to be influenced by several patient and facility-level variables, suggesting that there has been partial acceptance of the previous guideline that endorsed MRI for patients with TIA.
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT. Schaturvedi@med.miami.edu.
authors.forename: Seemant
authors.initials: S
authors.lastname: Chaturvedi
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Susan
authors.initials: S
authors.lastname: Ofner
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Fitsum
authors.initials: F
authors.lastname: Baye
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Laura J
authors.initials: LJ
authors.lastname: Myers
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Mike
authors.initials: M
authors.lastname: Phipps
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Jason J
authors.initials: JJ
authors.lastname: Sico
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Teresa
authors.initials: T
authors.lastname: Damush
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Edward
authors.initials: E
authors.lastname: Miech
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Mat
authors.initials: M
authors.lastname: Reeves
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Jason
authors.initials: J
authors.lastname: Johanning
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Linda S
authors.initials: LS
authors.lastname: Williams
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Greg
authors.initials: G
authors.lastname: Arling
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Eric
authors.initials: E
authors.lastname: Cheng
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Zhangsheng
authors.initials: Z
authors.lastname: Yu
authors.affiliation: From the Miami VA Hospital (S.C.); Department of Neurology (S.C.), University of Miami Miller School of Medicine, FL; Departments of Biostatistics (S.O., F.B.), Internal Medicine (L.J.M., T.D., D.B.), Emergency Medicine (E.M.), and Neurology (L.S.W., D.B.), Indiana University School of Medicine, IUPUI; Department of Veterans Affairs (VA) Health Services Research and Development (HSR&D) Stroke Quality Enhancement Research Initiative (QUERI) (L.J.M., T.D., E.M., M.R., L.S.W., G.A., D.B.); VA HSR&D Center for Health Information and Communication (CHIC) (L.J.M., T.D., E.M., L.S.W., D.B.), Richard L. Roudebush VA Medical Center, Indianapolis, IN; Department of Neurology (M.P.), University of Maryland School of Medicine, Baltimore; Clinical Epidemiology Research Center (J.J.S.), VA Connecticut Healthcare System, West Haven; Departments of Internal Medicine and Neurology (J.J.S.), Yale University School of Medicine, New Haven, CT; Regenstrief Institute (T.D., E.M., L.S.W., D.B.), Indianapolis, IN; Department of Epidemiology (M.R.), Michigan State University, East Lansing; VA Nebraska-Western Iowa Health Care System-Omaha Division (J.J.), Omaha; Department of Surgery (J.J.), University of Nebraska, Lincoln; Purdue University School of Nursing (G.A.), West Lafayette, IN; Department of Neurology (E.C.), University of California, Los Angeles School of Medicine; and SJTU-Yale Joint Center for Biostatistics (Z.Y.), New Haven, CT.
authors.forename: Dawn
authors.initials: D
authors.lastname: Bravata
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000473:pathology*; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D006787:Hospitals, Veterans / Q000706:statistics & numerical data; D006801:Humans; D007091:Image Processing, Computer-Assisted; D002546:Ischemic Attack, Transient / Q000000981:diagnostic imaging* / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D020521:Stroke / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D055815:Young Adult