Abstract #3900

Nonenhanced Renal MRA Using Time-SLIP with 3D Balanced SSFP: Optimization of Coronal Acquisition

Junji Takahashi¹, Sachiko Isono², Mitsue Miyazaki^2,3, Yoshinori Tsuji¹, Yusuke Hamada¹, Takashi Yoshida¹, Hiroshi Suzuki¹

¹Radiology, Toranomon Hospital, Tokyo, Japan; ²MRI, Toshiba Medical Systems Corp., Otawara, Tochigi, Japan; ³MRI, Toshiba Medical Research Institute, Vernon Hills, IL, USA

Nonenhanced renal 3D MRA using time-spatial labeling inversion pulse (time-SLIP) has been optimized using the inflow effect axial acquisition. The axial time-SLIP acquisition allows superb image contrast between the renal arteries and the background; however, the coverage is due to scan time. For slower blood flow, prolong blood traveling time (BBTI) is required. To overcome the coverage problem and extending the BBTI time, we proposed the coronal time-SLIP acquisition using an STIR pulse to suppress the background and fat signals. The coronal time-SLIP acquisition permits wide coverage of the renal arteries with good contrast between the renal blood and background.