摘要
目的：探讨ＭＲＩ在诊断颅咽管瘤中的作用。材料和方法：取７０例（男３７，女３３，平均年龄３３．２岁，平均病程２年半）经手术和病理证实的颅咽管瘤患者术前ＭＲＩ检查资料，其中２５例加作Ｇｄ－ＤＴＰＡ增强ＭＲＩ扫描，分析ＭＲＩ表现特征及找出诊断与鉴别诊断要点。结果：本组术前ＭＲＩ诊断定位正确率为１００％，定性正确率为８０％，误诊率为２０％，其ＭＲＩ特征性表现为：（１）肿瘤形态以结节状、分叶状为主（本组为６７％），边界清楚。（２）肿瘤信号多不均匀（本组为６５％），表现复杂。（３）Ｇｄ－ＤＴＰＡ增强多数肿瘤呈不均匀强化（本组５６％）。结论：ＭＲＩ的多轴位成像及Ｇｄ－ＤＴＰＡ应用有助于颅咽管瘤的诊断与鉴别诊断。
To investigate the role of MRI in diagnosis of craniopharyngioma. Materials and Methods:Seventy cases of craniopharyngioma (Male/female was 37/33 with average age 33.2 years and the average history was 2.5 years) proved by operation and pathology were examined by MRI before operation. Gd-DTPA enhancement was carried out in 25 cases. The diagnosis and differential diagnostic keys were established by analysis of MRI feature. Results:The localization and qualification rates were 100% and 80%,respectively with misdiagnosised rate was 20%. The characteristic MRI appearances of craniopharyngioma are as follows :(1) The tumor is nodular and lobular in shape with clear margin. (2) The tumor has hetrogeneous signal intensity.(3) Inhomogeneous Gd-DTPA enhancement in most of the tumors.Conclusion:Multiplanar imaging and GdDTPA enhancement in MRI are helpful in diagnosis and differential diagnosis of craniopharyngioma.
出处
《中国医学计算机成像杂志》
CSCD
1995年第3期160-162,共3页
Chinese Computed Medical Imaging
