Takahiro Koji1,
Yoshitaka Kubo1, Toshiyuki Murakami1, Takamasa Nanba1,
Makoto Sasaki2, Akira Ogawa1, Kuniaki Ogasawara1
1Department
of Neurosurgery, Iwate Medical University, Morioka, Iwate, Japan; 2Division
of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical
University, Morioka, Iwate, Japan
This study investigated preoperative evaluation of the origins of the perforating arteries using 7-Tesla magnetic resonance image (7T MRI) in patients with unruptured aneurysms. Six patients underwent 3D time-of-flight spoiled gradient echo MRA (3D-TOF MRA) at 7T MR imager before surgery. In three of these 6 patients, relationship of the origins of the perforating arteries to the aneurysms was clearly displayed on the MRA. The relationship on the MRA corresponded with findings of intraoperative view through microscope. 3D-TOF MRA on 7T MR imager can evaluate relationship of the origins of the perforating arteries to the aneurysms.