目的 探讨CT和MRI联合在诊断 颅脑动静脉畸形(AVM)的临床价值。方法 回顾性分析2014年2月-2016年2月经我治 疗的32例AVM患者的CT和MRI影像学资料 及临床资料病例。结果 通过CT和MRI检 查显示，Spetzler&Martin I级3例，II 级9例，III级19例，IV级2例。发生位置 幕上有26例，幕下存在6例，瘤巢大小约 在1.1cm-9.3cm范围间，平均(3.6±0.9) cm，大型(>5cm)6例，中型(2.5cm5.0cm)18例和小型(<2.5cm)8例。结论 CT 和MRI能较清晰显示AVM直接征象及间接征 象，诊断率高，具有较大的临床应用价 值。

Objective To investigate the clinical diagnosis value of CT and MRI in arterio venous alformation (AVM) of brain. Methods Retrospectively analyze the clinical and CT &MRI data of 32 patients with AVM in our hospital from February 2014 to February 2016. Results Through the diagnose of CT and MRI, there are 3 patients in Spetzler&Martin class I, 9 patients in class II, 19 patients in class III and 2 patients in class IV. 26 cases of AVM occur in supratentorial craniocerebral, 6 cases exist in infratentorial, the size of tumor nests range from 1.1cm to 9.3cm, average (3.6±0.9)cm, 6 cases are large (>5cm), 18 cases are medium-sized (2.5cm-5.0cm) and 8 cases are small(<2.5cm). Conclusion CT and MRI can clearly show the direct signs and indirect signs of AVM with a high diagnostic rate, which has great clinical application value.