Abstract #2150

ASL-Based Time-Resolved MRA Acquiring Labeled and Control Images in a Single Look-Locker-Like Acquisition

Yuriko Suzuki¹, Noriyuki Fujima², Hiroyuki Sugimori², Tetsuo Ogino¹, Marc Van Cauteren³

¹Philips Electronics Japan, Minato-ku, Tokyo, Japan; ²Hokkaido University Hospital, Sapporo, Hokkaido, Japan; ³Philips Healthcare Asia Pacific, Minato-ku, Tokyo, Japan

Hemodynamic information is useful for the accurate diagnosis, effective treatment and follow-up for numerous neurovascular diseases. Recently developed non-contrast-enhanced time-resolved 4D MRA using arterial spin labeling (ASL) methods achieve both high spatial and temporal resolution with 3D coverage. However, these methods require labeled and control images to make the subtracted image, doubling the scan time. We present a new non-contrast-enhanced time-resolved 4D MRA, in which contrast and labeled images are acquired in a single Look-Locker like acquisition, making scan time half compared to the conventional ASL method.