Comparison of 7 T and 3 T vessel wall MRI for the evaluation of intracranial aneurysm wall.

ABSTRACT:

Objectives

To compare the visibility of intracranial aneurysm wall and thickness quantification between 7 and 3 T vessel wall imaging and evaluate the association between aneurysm size and wall thickness.

Methods

Twenty-nine patients with 29 unruptured intracranial aneurysms were prospectively recruited for 3D T1-weighted vessel wall MRI at both 3 T and 7 T with 0.53 mm (3 T) and 0.4 mm (7 T) isotropic resolution, respectively. Two neuroradiologists independently evaluated wall visibility (0-5 Likert scale), quantified the apparent wall thickness (AWT) using a semi-automated full-width-half-maximum method, calculated wall sharpness, and measured the wall-to-lumen contrast ratio (CR_wall/lumen).

Results

Twenty-four patients with 24 aneurysms were included in

SUBMITTER: Feng J 

PROVIDER: S-EPMC9207191 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature