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目的:探讨64排螺旋CT血管成像(CTA)在脑动静脉畸形(AVM)术后评价的应用价值。方法:39例脑AVM患者,术前均完善CTA检查,术后1周行CTA随访,术后1个月行DSA随访,由放射科医师与神经外科医师对术后CTA进行共同阅片,并与术前CTA及术后DSA进行对比分析。结果:CTA显示39例脑AVM均为单发,均行开颅切除,4例使用了动脉夹辅助;CTA对脑AVM术后残留评价的敏感度和准确度分别为100%、97.4%,DSA对脑AVM术后残留评价的敏感度和准确度均为100%,两者的诊断敏感度和准确度比较,差异无统计学意义(P>0.05)。结论:应用CTA与DSA对脑AVM术后评价,CTA更为安全、方便,可作为首选方法。
Objective: To evaluate the value of 64-slice spiral CT angiography (CTA) in postoperative evaluation of cerebral arteriovenous malformations (AVM). Methods: Thirty-nine patients with brain AVM were examined with CTA before surgery. CTA was followed up one week after surgery and followed up by DSA one month after surgery. Radiographers and neurosurgeons performed CTA postoperatively. With preoperative CTA and postoperative DSA comparative analysis. Results: CTA showed that all 39 AVMs were single craniotomy, and all the patients underwent craniotomy. Four patients were assisted by arterial clip. The sensitivity and accuracy of CTA after residual AVM were 100% and 97.4%, respectively. DSA The sensitivity and accuracy of residual AVM evaluation after surgery were 100%. There was no significant difference in diagnostic sensitivity and accuracy between the two methods (P> 0.05). Conclusion: CTA and DSA are the safest and most convenient method for the evaluation of cerebral AVM after surgery.