Abstract #0599

Acceleration-selective Arterial Spin Labeling (AccASL) MR Angiography for Visualization of Distal Cerebral Arteries in Moyamoya Disease

Osamu Togao¹, Akio Hiwatashi¹, Makoto Obara², Koji Yamashita¹, Kazufumi Kikuchi¹, and Hiroshi Honda¹

¹Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ²Philips Electronics Japan, Tokyo, Japan

In this study, we demonstrated the utility of intracranial MR angiography (MRA) using acceleration-selective arterial spin labeling (AccASL) technique in Moyamoya disease. The AccASL-MRA markedly improved the visualization of arteries distal to the steno-occlusive site reflecting collateral flow via LMA in Moyamoya disease in comparison with time-of-flight (TOF)-MRA.

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