Compact MR-compatible ergometer and its application in cardiac MR under exercise stress: A preliminary study.

ABSTRACT:

Purpose

To develop a compact MR-compatible ergometer for exercise stress and to initially evaluate the reproducibility of myocardial native T1 and myocardial blood flow (MBF) measurements during exercise stress performed on this ergometer.

Methods

The compact ergometer consists of exercise, workload, and data processing components. The exercise stress can be achieved by pedaling on a pair of cylinders at a predefined frequency with adjustable resistances. Ten healthy subjects were recruited to perform cardiac MRI scans twice in a 3.0T MR scanner, at different days to assess reproducibility. Myocardial native T1 and MBF were acquired at rest and during a moderate exercise. The reproducibility of the two tests was determined by the intra-group correlation coefficient (ICC) and

SUBMITTER: He B 

PROVIDER: S-EPMC9545047 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature