Abdominal T2-Weighted Imaging and T2 Mapping Using a Variable Flip Angle Radial Turbo Spin-Echo Technique.

ABSTRACT:

Background

T2 mapping is of great interest in abdominal imaging but current methods are limited by low resolution, slice coverage, motion sensitivity, or lengthy acquisitions.

Purpose

Develop a radial turbo spin-echo technique with refocusing variable flip angles (RADTSE-VFA) for high spatiotemporal T2 mapping and efficient slice coverage within a breath-hold and compare to the constant flip angle counterpart (RADTSE-CFA).

Study type

Prospective technical efficacy.

Subjects

Testing performed on agarose phantoms and 12 patients. Focal liver lesion classification tested on malignant (N = 24) and benign (N = 11) lesions.

Field strength/sequence

1.5 T/RADTSE-VFA, RADTSE-CFA.

Assessment

A constrained objective function was used to optimize the refocusi

SUBMITTER: Keerthivasan MB 

PROVIDER: S-EPMC8678192 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature