Flow-related Problems in Whole Heart Cine Coronary MR Angiography
Nehrke K, Stehning C, Brnert P
Philips Research Laboratories
It was the aim of the present study to investigate the performance of a standard high-resolution b-SSFP sequence in whole heart cine CMRA. For this purpose 3D cardiac cine imaging was performed on healthy adults using a 1.5T whole body scanner. SNR and contrast were quantitatively compared for full and partial spatial coverage of the heart. In all volunteers a considerable decrease of the relative blood signal from the intraventricular cavity was found with increasing spatial coverage of the heart. This effect may be associated with increased in-plane flow due to the prolonged transit time of the spins.