目的探究中枢神经系统血管外 皮细胞瘤的CT与MRI表现。方法 于2015 年1月至2017年6月，选择我院2015年1 月-2017年6月收治的11例中枢神经系统 血管外皮细胞瘤患者作为研究对象，分 别给予CT与MRI检查，对比两种方式的诊 断结果并探讨检查表现。结果 CT及MRI 对中枢神经系统血管外皮细胞瘤的异常 检出率与早期病变检出率无明显差异， P＞0.05；本组11例患者中，颅内患者9 例，幕上7例，额部2例，颞部2例，枕 部、顶部与左侧脑室三角区域各1例；幕 下2例，桥小脑角区与后颅凹小脑幕旁各 1例。颈部2例。肿瘤直径2.0-6.0cm，平 均(3.97±1.16)cm。肿块形态为4例分 叶状，4例类圆形或椭圆形，3例不规则 形。CT常规平扫显示为稍高密度影，其 中3例伴有稍低密度影，增强扫描显示病 变密度有明显增加，并有明显高密度强 化血管影。低密度部位则无明显的强化 影。MRI表现：7例患者病灶部位显示T1 稍短信号与T2等信号，2例患者显示为T1 等信号与T2等信号，2例患者显示T1等信 号与T2稍高信号，增强扫描显示，10例 病灶有明显强化，8例病灶内有明显的血 管流空信号，5例出现囊变与坏死灶。病 灶附着硬膜8例窄基底，3例宽基底，有3 例患者病灶显示硬膜尾征。结论 中枢神 经系统血管外皮细胞瘤的CT与MRI表现具 有典型性，且均有较高的诊断价值，可 以为患者的治疗提供参考，值得临床推 广。

Objective To investigate the CT and MRI findings of hemangiopericytoma of the central nervous system. Methods From January 2015 to June 2017, 11 cases of CNS hemangiopericytoma treated in our hospital in June January 2015 -2017 were selected as the research subjects. CT and MRI were given respectively, and the results of the two methods were compared and the findings were discussed. Results There was no significant difference between the abnormal detection rate of CT and MRI in the central nervous system hemangiopericytoma, P>0.05. In this group, 9 cases of intracranial patients, 9 cases of intracranial patients, 7 supratentorial cases, 2 cases of forehead, 2 cases in the temporal region, 1 cases in the occipital and left ventricle, 2 cases, cerebellopontine angle area and posterior region. 1 cases of cranial fossa paracererias. 2 cases of the neck. The diameter of the tumor was 2.0-6.0cm, with an average of (3.97±1.16) cm. The shape of the tumor was lobulated in 4 cases, round or oval in 4 cases, irregular in 3 cases. CT routine scan showed a slightly high density shadow, of which 3 cases were accompanied by a slightly low density shadow. Enhanced scan showed a significant increase in the density of the lesions, and a significant density enhanced vascular shadow. There was no obvious strengthening shadow in the low density part. MRI manifestation: 7 cases showed T1 slightly short signal and T2 signal, 2 cases showed T1 signal and T2 signal, 2 cases showed T1 and T2 slightly high signal, enhanced scan showed that 10 cases had obvious enhancement, 8 cases had obvious blood vessel flow signal number, 5 case appeared cystic change and necrotic foci. The lesion adhered to the dura mater in 8 cases, the narrow base in 3 cases, the broad base in 3 cases, and the dural tail sign in the lesions. Conclusion The CT and MRI manifestations of CNS hemangiopericytoma are typical, and have high diagnostic value. It can provide reference for the treatment of patients. It is worthy of clinical promotion.