Interrater agreement and detection accuracy for medium-vessel occlusions using single-phase and multiphase CT angiography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00843989%3A_____%2F22%3AE0109365" target="_blank" >RIV/00843989:_____/22:E0109365 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14110/22:00125091

Result on the web

<a href="http://www.ajnr.org/content/ajnr/43/1/93.full.pdf" target="_blank" >http://www.ajnr.org/content/ajnr/43/1/93.full.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3174/ajnr.A7361" target="_blank" >10.3174/ajnr.A7361</a>

Result language

angličtina

Original language name

Interrater agreement and detection accuracy for medium-vessel occlusions using single-phase and multiphase CT angiography

Original language description

Background and purpose: Accurate and reliable detection of medium-vessel occlusions is important to establish the diagnosis of acute ischemic stroke and initiate appropriate treatment with intravenous thrombolysis or endovascular thrombectomy. However, medium-vessel occlusions are often challenging to detect, especially for unexperienced readers. We aimed to evaluate the accuracy and interrater agreement of the detection of medium-vessel occlusions using single-phase and multiphase CTA. Materials and methods: Single-phase and multiphase CTA of 120 patients with acute ischemic stroke (20 with no occlusion, 44 with large-vessel occlusion, and 56 with medium-vessel occlusion in the anterior and posterior circulation) were assessed by 3 readers with varying levels of experience (session 1: single-phase CTA; session 2: multiphase CTA). Interrater agreement for occlusion type (large-vessel occlusion versus medium-vessel occlusion versus no occlusion) and for detailed occlusion sites was calculated using the Fleiss ? with 95% confidence intervals. Accuracy for the detection of medium-vessel occlusions was calculated for each reader using classification tables. Results: Interrater agreement for occlusion type was moderate for single-phase CTA (? = 0.58; 95% CI, 0.56-0.62) and almost perfect for multiphase CTA (? = 0.81; 95% CI, 0.78-0.83). Interrater agreement for detailed occlusion sites was moderate for single-phase CTA (? = 0.55; 95% CI, 0.53-0.56) and substantial for multiphase CTA (? = 0.71; 95% CI, 0.67-0.74). On single-phase CTA, readers 1, 2, and 3 classified 33/56 (59%), 34/56 (61%), and 32/56 (57%) correctly as medium-vessel occlusions. On multiphase CTA, 48/56 (86%), 50/56 (89%), and 50/56 (89%) medium-vessel occlusions were classified correctly. Conclusions: Interrater agreement for medium-vessel occlusions is moderate when using single-phase CTA and almost perfect with multiphase CTA. Detection accuracy is substantially higher with multiphase CTA compared...

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30210 - Clinical neurology

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2022

Confidentiality

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

Name of the periodical

American journal of neuroradiology

ISSN

0195-6108

e-ISSN

1936-959X

Volume of the periodical

43

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

93-97

UT code for WoS article

000722313700001

EID of the result in the Scopus database

2-s2.0-85123651406