3．0T高场强术中磁共振在脑肿瘤手术中的初步应用

The initial application of 3.0T high field intensity intraoperative magnetic resonance for cranial tumor

目的探讨3．0T高场强术中磁共振（iMR）在脑肿瘤手术中的临床应用价值。方法应用GE Signa HDX 3．0T iMR系统行脑肿瘤手术患者43例，其中胶质瘤23例，垂体瘤12例，脑干海绵状血管瘤3例，脑膜瘤2例，转移瘤2例，神经鞘瘤1例。分析其对手术过程和结果的影响。结果43例患者术中，iMR扫描1～3次，平均1．3次，共有16例发现有肿瘤残留，其中13例行再次手术达到完全切除，全切除率由63％（27／43）提高至93％（40／43）。无iMR相关不良事件发生。结论3．0T高场强iMR为脑肿瘤手术提供精确定位、实时导航，提高脑肿瘤全切除率，增加了手术的安全性和精确度，减少了并发症。

Objective To study the initial application of 3.0T high field intensity intraoperative magnetic resonance （iMR） for cranial tumors. Methods Forty-three patients with cranial tumors including 23 glioma cases, 12 pituitary tumor cases, 3 brain stem cavernous hemangioma eases, 2 meningioma cases, 2 metastatic tumor cases, 1 neurilemmoma case,received operation examined with GE Signa HDX 3.0T iMR system. The operation process and influence of iMR were reviewed. Results In 43 patients,average iMR examination was 1.3 （ 1 - 3 ） times. In 16 patients the first iMR examination revealed tumor remnants, and in 13 of them continued surgical interventions and complete resection. The rate of complete resection was increased from 63%（27/43 ） to 93%（40/43 ）. No complications related to iMR occurred. Conclusion 3.0T high field intensity iMR can provide accurate positioning and real-time navigation for the surgery,increase the rate of complete resection,improve the accuracy and safety of cranial tumor resection,and decrease complications.