Nationwide questionnaire survey on neuroimaging strategy for acute ischemic stroke in Japan

DOI Web Site 13 References
  • Okada Takashi
    Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center
  • Inoue Manabu
    Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center Division of Stroke Care Unit, National Cerebral and Cardiovascular Center
  • Yamagami Hiroshi
    Division of Stroke Medicine, National Hospital Organization Osaka National Hospital
  • Tanaka Kanta
    Division of Stroke Care Unit, National Cerebral and Cardiovascular Center
  • Shiozawa Masayuki
    Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center
  • Sonoda Kazutaka
    Department of Neurology, Saiseikai Fukuoka General Hospital
  • Ikenouchi Hajime
    Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center
  • Fukuda Tetsuya
    Department of Radiology, National Cerebral and Cardiovascular Center
  • Satow Tetsu
    Department of Neurosurgery, National Cerebral and Cardiovascular Center
  • Ihara Masafumi
    Department of Neurology, National Cerebral and Cardiovascular Center
  • Kudo Kohsuke
    Division of Diagnostic and Interventional Radiology, Hokkaido University
  • Itabashi Ryo
    Division of Neurology and Gerontology, Iwate Medical University
  • Toyoda Kazunori
    Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center
  • Koga Masatoshi
    Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center

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Other Title
  • 急性期脳梗塞における画像診断の現状─全国アンケート調査─

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Abstract

<p>Background and Purpose: Acute ischemic stroke is treatable with acute reperfusion therapy. Imaging evaluation by CT or MRI is essential for the diagnosis of acute ischemic stroke. Recently, the effectiveness of imaging-based selection for reperfusion therapy has been proved in various clinical trials. To clarify the current status of neuroimaging strategy for acute ischemic stroke in Japan, we conducted a nationwide survey. Methods: A web questionnaire on neuroimaging strategy from January to December 2017 was mailed to neurosurgeons and neurologists in 2112 institutes in August 2018. Results: Of 2112 institutes, 556 sites (26%) were responded. Within 556 respondents, 507 (91%) sites were performing medical treatment for acute stroke. Of the 507 respondents, 311 (61%) performed diagnostic imaging of acute stroke with both CT and MRI, and door to imaging time was within 20 minutes in 312 respondents (61%). Three hundred and twenty-two (322) sites were performing endovascular treatment (EVT) for acute ischemic stroke and of these 263 respondents were performing EVT to late presenting cases. Within 263 respondents, only 30 (12%) used perfusion imaging to determine the indication of EVT in late presenting cases. Conclusions: In Japan, diagnosis of acute ischemic stroke using both CT and MRI was mostly common, and perfusion imaging for patient selection was rarely used.</p>

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