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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