Sutherland Garnette R, Kaibara Taro, Wallace Carla, Tomanek Boguslaw, Richter Marlene
Department of Clinical Neurosciences, Seaman Family Magnetic Resonance Research Centre, University of Calgary, Calgary, Alberta, Canada.
Neurosurgery. 2002 Apr;50(4):893-7; discussion 897-8. doi: 10.1097/00006123-200204000-00044.
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.
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.
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.
For the first time, intraoperative magnetic resonance imaging has been used to monitor the surgical treatment of a patient with an intracranial aneurysm.
使用术中磁共振成像，包括磁共振血管造影和弥散加权成像，来监测一名颅内动脉瘤患者的手术治疗情况。
术中成像采用了安装在天花板上的移动1.5-T磁体（与加拿大马尼托巴省温尼伯市的创新磁共振成像系统公司合作开发），该磁体具有高性能的20-mT/m梯度。对一名偶然发现的8毫米前交通动脉瘤患者，在夹闭前和夹闭后获取了术中T1加权、血管造影和弥散加权磁共振图像。
T1加权图像显示了脑解剖特征，以及手术引起的可见移位。磁共振血管造影显示了动脉瘤，并表明夹闭后大脑前动脉A1和A2分支通畅。弥散加权研究未显示脑缺血迹象。
术中磁共振成像首次被用于监测一名颅内动脉瘤患者的手术治疗。
