Semiautomated Detection of Early Infarct Signs on Noncontrast CT Improves Interrater Agreement.

ABSTRACT:

Background

Acute ischemic infarct identification on noncontrast computed tomography (NCCT) is highly variable between raters. A semiautomated method for segmentation of acute ischemic lesions on NCCT may improve interrater reliability.

Methods

Patients with successful endovascular reperfusion from the DEFUSE 3 trial (Endovascular Therapy Following Imaging Evaluation for Ischemic Stroke) were included. We created relative NCCT (rNCCT) color-gradient overlays by comparing the density of a voxel on NCCT to the homologous region in the contralateral hemisphere. Regions with a relative hypodensity of at least 5% were visualized. We coregistered baseline and follow-up images. Two neuroradiologists and 6 nonradiologists segmented the acute ischemic lesion on the baseline scans with

SUBMITTER: Christensen S 

PROVIDER: S-EPMC10843172 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature