Abstract #1661

Toward the hemodynamic analysis of Moyamoya disease using ultra-fast DCE-MRI by GRASP

Koji Fujimoto¹, Yasutaka Fushimi², Takeshi Funaki³, Satoshi Nakajima², Yusuke Yokota², Sonoko Oshima², Sayo Otani², Azusa Sakurama², Krishna Wicaksono Pandu², Tomohisa Okada¹, and Kaori Togashi²

¹Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University, Kyoto, Japan, ³Department of Neurosurgery, Kyoto University, Kyoto, Japan

One subject with Moyamoya disease was scanned with radial vibe sequence. GRASP reconstruction was performed using different number of spokes/frame. ROI-based analysis performed to compare the maximum slope for each ROI placed in the vessels showed that the faster imaging gave the larger slope, but the blurring at the corner of TIC is seen at the higher temporal resolution. By using images with 5 spokes/frame, voxel-by-voxel analysis could create the arrival map and the maximum slope map.

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