Prospective motion correction in kidney MRI using FID navigators.

ABSTRACT:

Purpose

Abdominal MRI scans may require breath-holding to prevent image quality degradation, which can be challenging for patients, especially children. In this study, we evaluate whether FID navigators can be used to measure and correct for motion prospectively, in real-time.

Methods

FID navigators were inserted into a 3D radial sequence with stack-of-stars sampling. MRI experiments were conducted on 6 healthy volunteers. A calibration scan was first acquired to create a linear motion model that estimates the kidney displacement due to respiration from the FID navigator signal. This model was then applied to predict and prospectively correct for motion in real time during deep and continuous deep breathing scans. Resultant images acquired with the proposed technique were co

SUBMITTER: Ariyurek C 

PROVIDER: S-EPMC9670860 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature