MRI对桥小脑角区肿瘤的诊断价值(附120例分析)

Diagnosis Value of MRI to Cerebellopontine Angle Tumor: Analysis of 20 Cases

目的:分析桥小脑角区肿瘤的MRI表现,以提高桥小脑角区肿瘤术前诊断的准确率.方法:收集一组经手术及病理证实的桥小脑角区肿瘤120例,全部病例行MRI平扫加增强检查.结果:本组120例中,其中听神经瘤45例、脑膜瘤37例、三叉神经瘤6例、表皮样囊肿8例、蛛网膜囊肿7例、胶质瘤6例、血管网状细胞瘤6例、海绵状血管瘤5例.肿瘤位于左侧桥小脑角区占64例,位于右侧桥小脑角区占59例.术前定位准确率为100%,定性准确率达97.5%.结论:MRI在桥小脑角区肿瘤的诊断与鉴别诊断中具有较高价值,可作为桥小脑角区肿瘤的术前首选检查方法.

Objective： To improve the preoperative diagnosis accuracy of cerebellopontine angle tumors through analyzing MRI findings. Methods： Collecting 120 cases of cerebellopontine angle tumors which confirmed by pathology and surgery, all cases underwent MRI scan plus enhanced MRI. Results： In 120 cases, acoustic neuroma in 45 cases, meningioma in 37 cases, 6 cases of trigeminal neuroma, epidermoid cyst in 8 cases, arachnoid cyst in 7 cases, glioma in 6 cases, 6 cases of angioreticuloma, cavernous angioma in 5 cases. Tumors located in the left cerebellopontine angle accounted for 64 cases, located on the right cerebellopontine angle accounted for 59 cases. Preoperative localization accuracy was 100%, qualification accuracy rate was 97.5%. Conclusion： MRI has a high value in the diagnosis and differential diagnosis of cerebellopontine angle tumors, which can be used as a preferred preoperative examination method in cerebellopontine angle tumors.