Evaluation of the distribution and progression of intraluminal thrombus in abdominal aortic aneurysms using high-resolution MRI.

ABSTRACT:

Background

Intraluminal thrombus (ILT) signal intensity on MRI has been studied as a potential marker of abdominal aortic aneurysm (AAA) progression.

Purpose

1) To characterize the relationship between ILT signal intensity and AAA diameter; 2) to evaluate ILT change over time; and 3) to assess the relationship between ILT features and AAA growth.

Study type

Prospective.

Subjects

Eighty AAA patients were imaged, and a subset (n = 41) were followed with repeated MRI for 16 ± 9 months.

Field strength/sequence

3D black-blood fast-spin-echo sequence at 3 T.

Assessment

ILT was designated as "bright" if the signal was greater than 1.2 times that of adjacent psoas muscle. AAAs were divided into three groups based on ILT: Type 1: bright ILT; Type 2: isoint

SUBMITTER: Zhu C 

PROVIDER: S-EPMC7425182 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature