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Abstract #1411

High-Resolution MR Angiography at 7T: Detection of Perforating Arteries of the Anterior Communicating and Distal Middle Cerebral Arteries

Taisuke Harada 1 , Yuiko Sato 2 , Takamasa Nanba 2 , Takahiro Kouji 2 , Takaaki Beppu 2 , Tsuyoshi Matsuda 3 , Hiroyuki Kabasawa 3 , Fumio Yamashita 1 , Ikuko Uwano 1 , Kohsuke Kudo 4 , Kuniaki Ogasawara 2 , and Makoto Sasaki 1

1 Ultra-High Field MRI, Iwate Medical University, Morioka, Iwate, Japan, 2 Neurosurgery, Iwate Medical University, Morioka, Iwate, Japan, 3 Global Applied Science Laboratory, GE Healthcare, Hino, Tokyo, Japan, 4 Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, Japan

Minute perforating arteries such as the hypothalamic branch of the subcallosal artery and the long insular artery, which can cause severe neurological complications when injured during surgery, have not been visualized using imaging modalities including magnetic resonance angiography (MRA) at 3 Tesla or below. We revealed that high-resolution MRA at 7T, particularly with a magnetization transfer contrast pulse, can readily visualize these arteries and their relationship with surrounding structures. This technique may contribute to avoiding complications of surgery on aneurysms at the anterior communicating artery and tumors in the insulo-opercular regions.

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