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Single-Centre Experience with Patients Selection for Mechanical Thrombectomy Based on Automated Computed Tomography Perfusion Analysis–A Comparison with Computed TomographyCT Perfusion Thrombectomy Trials

  • Author Footnotes
    1 These authors contributed equally to this work.
    Jiri Vanicek
    Footnotes
    1 These authors contributed equally to this work.
    Affiliations
    Department of Medical Imaging, St. Anne´s University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic
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  • Author Footnotes
    1 These authors contributed equally to this work.
    Petra Cimflova
    Correspondence
    Address correspondence to Petra Cimflova, MD, Department of Medical Imaging, St. Anne´s University Hospital and Faculty of Medicine, Masaryk University, Pekarska 53, Brno 617 00, Czech Republic.
    Footnotes
    1 These authors contributed equally to this work.
    Affiliations
    Department of Medical Imaging, St. Anne´s University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic

    International Clinical Research Centre, Stroke Research Program, St. Anne´s University Hospital, Brno, Czech Republic
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  • Martin Bulik
    Affiliations
    Department of Medical Imaging, St. Anne´s University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic
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  • Jiri Jarkovsky
    Affiliations
    Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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  • Veronika Prelecova
    Affiliations
    Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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  • Viktor Szeder
    Affiliations
    Division of Interventional Neuroradiology, David Geffen School of Medicine, University of California, Los Angeles, California
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  • Ondrej Volny
    Affiliations
    International Clinical Research Centre, Stroke Research Program, St. Anne´s University Hospital, Brno, Czech Republic

    Departments of Clinical Neurosciences, Calgary Stroke Program, Cumming School of Medicine, University of Calgary, Calgary, Canada

    Department of Neurology, St. Anne´s University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic
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  • Author Footnotes
    1 These authors contributed equally to this work.

      Abstract

      Background: In randomized clinical trials, mechanical thrombectomy (MT) was proved to be a highly effective treatment of acute ischemic stroke which improved clinical outcomes. Some of the trials used automated computed tomography perfusion (CTP) analysis for selection of participants. We present a single-center experience with CTP selection and comparison with CTP trials. Methods: Data of consecutive MT patients (from January 2016 to December 2017) were retrospectively reviewed. All patients with multiphase CT angiography confirmed the presence of anterior circulation large vessel occlusion/s in the intracranial internal carotid artery and/or middle cerebral artery (M1 or M2) and with admission brain CTP analyzed by RAPID software were included into the analysis. Results: Sixty-two patients fulfilled the inclusion criteria (mean age was 70.1 ± 13.6 years, females 48.5%). At baseline, National Institutes of Health Stroke Scale score was 16 (IQR = 13-20), Alberta Stroke Program Early CT Score (ASPECTS) was 8 (IQR = 7-9), CTP core volume was 20 mL (IQR = 2-36), and CTP penumbra volume was 145.5 mL (IQR = 107-184). Time from stroke onset to imaging was 1 hour 32 minutes, time from stroke onset to reperfusion was 3 hours 50 minutes, and median time from CT to reperfusion was 1 hour 56 minutes. Modified thrombolysis in cerebral infarction 2b/3 was achieved in 42 patients (67.7%). Twenty-three patients (37%) had modified Rankin scale 0-2 at 90 days. Conclusions: Our analysis of CTP-selected patients for MT supports clinical applicability of automated CTP analysis into everyday clinical practice.

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