AJDRAJNR - American Journal of Neuroradiology

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ARTICLE

Tagged MR Imaging of Intracranial Aneurysm Models

Haruo Isoda,a, Yasutomi Kinosadaa, Satoshi Isogaia, Yasuo Takeharaa and Tatsuhiko Itoa

a From the Department of Radiology, Hamamatsu University School of Medicine, Hamamatsu, Japan (H.I., S.I., Y.T.); the Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan (Y.K.); and the Department of Radiology, Seirei Hamamatsu General Hospital, Hamamatsu, Japan (T.I.).

Summary: We used tagged MR imaging to investigate the flow in two lateral and two terminal saccular intracranial aneurysm models of different neck sizes. Imaging was performed with a 1.5-T superconducting MR system using 2D fast spatial modulation of magnetization (SPAMM) sequences with an intersegmental delay of 25 milliseconds. The flow in the saccular aneurysm models varied with the shape and size of the neck: flow was faster in wider-necked aneurysms than in those with narrower necks.