移动磁体双室高场强术中磁共振成像系统在神经外科的初步应用

Dual room high -field intraoperative magnetic resonance imaging suite with a movable magnet： implementation and preliminary experience in neurosurgery

目的回顾总结移动磁体高场强术中磁共振成像（iMRI）系统在神经外科的临床应用经验。方法自2009年2月至7月，共有120例患者接受iMRI辅助下的手术。结果91例行开颅手术和29例经蝶窦手术。48例（40．0％）术中使用iMRI发现残留病灶并改变了手术策略，扩大了切除范围。病变全切率81．7％。结论移动磁体高场强iMRI和功能神经导航系统能够被很好地整合进神经外科手术流程，对改进手术策略，最大化地切除病灶和最大程度地保留神经功能很有帮助。

Objective To review the clinical experience of intra -operative high -field magnetic resonance （MR）imaging suite with a movable magnet in dual room setting in neurosurgery. Methods From February to July 2009, 120 patients in our department of neurosurgery were operated in a 1.5T intra- operative magnetic resonance imaging suite with a movable magnet, and a microscope -based functional neuro - navigation system. Results 91 craniotomies and 29 transsphenoidal operations were performed. In 48 （40. 0% ） patients, intra - operative MR imaging had revealed residual lesions and resulted in the change of surgical strategy （e. g. further resection of tumors）. Eventually, 98 （81.7%） lesions were totally removed. Conclusions Intra - operative high - field MR imaging and functional neuro - navigation can be successfully integrated into standard neurosurgical workflow. It is helpful for maximizing the resection of lesions and minimizing the injury to neurological function.