Interrater Agreement in the Radiologic Characterization of Ruptured Intracranial Aneurysms Based on Computed Tomography Angiography.

Details

Serval ID
serval:BIB_630DA5A730CF
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Interrater Agreement in the Radiologic Characterization of Ruptured Intracranial Aneurysms Based on Computed Tomography Angiography.
Journal
World neurosurgery
Author(s)
Maldaner N., Stienen M.N., Bijlenga P., Croci D., Zumofen D.W., Dalonzo D., Marbacher S., Maduri R., Daniel R.T., Serra C., Esposito G., Neidert M.C., Bozinov O., Regli L., Burkhardt J.K.
ISSN
1878-8769 (Electronic)
ISSN-L
1878-8750
Publication state
Published
Issued date
07/2017
Peer-reviewed
Oui
Volume
103
Pages
876-882.e1
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
To determine interrater agreement in the initial radiologic characterization of ruptured intracranial aneurysms based on computed tomography angiography (CTA) with special emphasis on the rater's level of experience.
One junior and one senior rater of 5 high-volume neurovascular tertiary centers evaluated anonymized CTA images of 30 consecutive patients with aneurysmal subarachnoid hemorrhage. Each rater described location, side, size, and morphology in a standardized manner. Interrater variability was analyzed using intraclass correlation and Fleiss' kappa analysis.
There was a high level of agreement for location (κ = 0.76, 95% confidence interval [CI] 0.74-0.79), side (κ = 0.95, CI 0.91-0.99), maximum diameter (intraclass correlation coefficient [ICC] 0.81, CI 0.70-0.90), and dome (ICC 0.78, CI 0.66-0.88) of intracranial aneurysms. In contrast, a lower level of agreement was observed for aneurysms' neck diameter (ICC 0.39, CI 0.28-0.58), the presence of multiple aneurysms (κ = 0.35, CI 0.30-0.40), and aneurysm morphology (blister κ = 0.11, CI -0.05 to 0.07; fusiform κ = 0.54, CI 0.48-0.60; multilobular, κ = 0.39 CI 0.33-0.45). The interrater agreement in the senior rater group was greater than in the junior rater group.
Interrater agreement confirms the benefit of CTA as initial diagnostic imaging in ruptured intracranial aneurysms but not for aneurysm morphology and presence of multiple aneurysms. A trend towards greater interrater agreement between more experienced raters was noticed.

Keywords
Aneurysm morphology, Computed tomography angiography, Interrater agreement, Interrater reliability, Neurovascular imaging, Subarachnoid hemorrhage
Pubmed
Web of science
Create date
22/07/2017 20:54
Last modification date
20/08/2019 14:19
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