Radial fast interrupted steady-state (FISS) magnetic resonance imaging.

ABSTRACT:

Purpose

To report a highly interrupted radial variant of balanced steady-state free precession (bSSFP) imaging, termed fast interrupted steady-state (FISS), for decreasing flow artifact as well as fat signal conspicuity with respect to bSSFP, and saturation effects vis-à-vis fast low-angle shot (FLASH) imaging.

Methods

Numerical simulations, phantom studies, and human studies were conducted to examine the imaging contrast, off-resonance behavior, and flow properties of FISS. Human studies applied FISS for cine cardiac imaging and ungated nonenhanced MR angiography (MRA) of the legs, neck, and brain. Comparisons were made with bSSFP and FLASH imaging.

Results

Simulations revealed that FISS retains the high signal levels of bSSFP for stationary on-resonant spins, while

SUBMITTER: Koktzoglou I 

PROVIDER: S-EPMC5811387 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature