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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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