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ASPECTS Interobserver Agreement of 100 Investigators from the TENSION Study

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F21%3A00124106" target="_blank" >RIV/00216224:14110/21:00124106 - isvavai.cz</a>

  • Result on the web

    <a href="https://link.springer.com/article/10.1007/s00062-020-00988-x" target="_blank" >https://link.springer.com/article/10.1007/s00062-020-00988-x</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s00062-020-00988-x" target="_blank" >10.1007/s00062-020-00988-x</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    ASPECTS Interobserver Agreement of 100 Investigators from the TENSION Study

  • Original language description

    Purpose Evaluating the extent of cerebral ischemic infarction is essential for treatment decisions and assessment of possible complications in patients with acute ischemic stroke. Patients are often triaged according to image-based early signs of infarction, defined by Alberta Stroke Program Early CT Score (ASPECTS). Our aim was to evaluate interrater reliability in a large group of readers. Methods We retrospectively analyzed 100 investigators who independently evaluated 20 non-contrast computed tomography (NCCT) scans as part of their qualification program for the TENSION study. Test cases were chosen by four neuroradiologists who had previously scored NCCT scans with ASPECTS between 0 and 8 and high interrater agreement. Percent and interrater agreements were calculated for total ASPECTS, as well as for each ASPECTS region. Results Percent agreements for ASPECTS ratings was 28%, with interrater agreement of 0.13 (95% confidence interval, CI 0.09-0.16), at zero tolerance allowance and 66%, with interrater agreement of 0.32 (95% CI: 0.21-0.44), at tolerance allowance set by TENSION inclusion criteria. ASPECTS region with highest level of agreement was the insular cortex (percent agreement = 96%, interrater agreement = 0.96 (95% CI: 0.94-0.97)) and with lowest level of agreement the M3 region (percent agreement = 68%, interrater agreement = 0.39 [95% CI: 0.17-0.61]). Conclusion Interrater agreement reliability for total ASPECTS and study enrollment was relatively low but seems sufficient for practical application. Individual region analysis suggests that some are particularly difficult to evaluate, with varying levels of reliability. Potential impairment of the supraganglionic region must be examined carefully, particularly with respect to the decision whether or not to perform mechanical thrombectomy.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    30230 - Other clinical medicine subjects

Result continuities

  • Project

  • Continuities

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    CLINICAL NEURORADIOLOGY

  • ISSN

    1869-1439

  • e-ISSN

  • Volume of the periodical

    31

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    8

  • Pages from-to

    1093-1100

  • UT code for WoS article

    000612304600001

  • EID of the result in the Scopus database

    2-s2.0-85099938064