Free-Breathing 2D Time-of-Flight Pulmonary MRA at 3T
Hui S, Wu E, Yang J
The University of Hong Kong
This study aims to optimize and evaluate a free-breathing 2D TOF PMRA protocol at 3T. The protocol was based on a T1-weighted turbo field echo sequence with static tissue suppression using magnetization transfer plus selective inverse recovery, spectral fat saturation, cardiac gating, respiratory navigator gating, and parallel imaging. Satisfactory pulmonary MRAs were demonstrated in volunteer subjects (N=12). The proposed protocol is clinically relevant for patients who are unable to provide long breath-holds during MRI scans.