摘要
自1991年1月至1994年1月采用CT引导立体定向技术对241例脑深部或脑主要功能区病灶进行了活检手术。其中男153例,女88例;年龄平均34.8（5～70)岁。病变位于鞍区44例,基底神经核区43例,第三脑室后部35例,大脑半球深部55例,脑室内17例,颅内多发性病灶28例,脑干内6例,小脑半球13例。活检总阳性率为97.92％,肿瘤检出率为86.71％。3例并发颅内出血（1.24％）,无手术死亡及其它严重并发症。认为CT引导的立体定向脑深部病变活检是一种明确颅内占位病变的组织学诊断并利于采取最佳治疗措施的最可靠的方法。
CT guided stereotactic biopsy were performed in 241 patients (153 males and 88 females) with intracerebral lesion which is deep-seated or located in functional area. The patiant's age ranged from 5 to 70 years (average 34. 8 years). In 44 cases, the sites of lesion were located in the sellar region, 43 in basal ganglion,35 at the posterior part of the third ventricle,55 in the deep parenchyma, 17 in the ventricule, 28 in multiple sites, 6 in brain stem, and 13 in cerebellum. The overall positive biopsy rate is 97. 92% and the positive biopsy rate for brain tumor is 86. 71%. In-tracranial hematoma occured after biopsy were found in 3 patients (1. 24%), there were no death and other serious complication. The results suggested that CT guided stereo-tactic biopsy is one of the most reliable method to gain histopathological diagnosis and served to choose the optimal therapeutical approach for the lesions.
