Asou H, et al. - In this prospective study, the researchers sought to develop an automated system for determining the cardiac rest period during whole-heart coronary magnetic resonance angiography (CMRA) examination. Participants in the study were 10 healthy male volunteers. Data reported that good agreement was seen in the end time and trigger time between the proposed CMRA and conventional CMRA. As compared to conventional CMRA, a significantly higher image quality was provided for the left circumflex artery in the proposed CMRA. Compared with conventional CMRA, the system enabled detection of the rest period automatically without operator intervention and showed somewhat higher image quality. Its use might be beneficial to improve the imaging workflow for CMRA in clinical practice.