Virtual monoenergetic images by spectral detector computed tomography may improve image quality and diagnostic ability for ischemic lesions in acute ischemic stroke.

ABSTRACT:

Background

Acute ischemic lesions are challenging to detect by conventional computed tomography (CT). Virtual monoenergetic images may improve detection rates by increased tissue contrast.

Purpose

To compare the ability to detect ischemic lesions of virtual monoenergetic with conventional images in patients with acute stroke.

Material and methods

We included consecutive patients at our center that underwent brain CT in a spectral scanner for suspicion of acute stroke, onset <12 h, with or without (negative controls) a confirmed cortical ischemic lesion in the initial scan or a follow-up CT or magnetic resonance imaging. Attenuation was measured in predefined areas in ischemic gray (guided by follow-up exams), normal gray, and white matter in conventional images and re

SUBMITTER: Mellander H 

PROVIDER: S-EPMC10588276 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature