使用磁共振血管造影和弥散加权成像对动脉瘤夹闭进行术中评估：技术病例报告

Intraoperative assessment of aneurysm clipping using magnetic resonance angiography and diffusion-weighted imaging: technical case report.

作者信息

Sutherland Garnette R, Kaibara Taro, Wallace Carla, Tomanek Boguslaw, Richter Marlene

机构信息

Department of Clinical Neurosciences, Seaman Family Magnetic Resonance Research Centre, University of Calgary, Calgary, Alberta, Canada.

出版信息

Neurosurgery. 2002 Apr;50(4):893-7; discussion 897-8. doi: 10.1097/00006123-200204000-00044.

DOI:10.1097/00006123-200204000-00044

PMID:11904047

Abstract

OBJECTIVE AND IMPORTANCE

To use intraoperative magnetic resonance imaging, including magnetic resonance angiography and diffusion-weighted imaging, to monitor the surgical treatment of a patient with an intracranial aneurysm.

TECHNIQUE

Intraoperative imaging was performed with a ceiling-mounted, mobile, 1.5-T magnet (developed in collaboration with Innovative Magnetic Resonance Imaging Systems, Inc., Winnipeg, MB, Canada) that included high-performance 20-mT/m gradients. Pre- and postclipping, intraoperative, T1-weighted, angiographic and diffusion-weighted magnetic resonance images were obtained from a patient with an incidental, 8-mm, anterior communicating artery aneurysm.

RESULTS

T1-weighted images demonstrated brain anatomic features, with visible shifts induced by surgery. Magnetic resonance angiography demonstrated the aneurysm and indicated that, after clipping, the A1 and A2 anterior cerebral artery branches were patent. Diffusion-weighted studies demonstrated no evidence of brain ischemia.

CONCLUSION

For the first time, intraoperative magnetic resonance imaging has been used to monitor the surgical treatment of a patient with an intracranial aneurysm.

摘要