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目的总结双源CT冠状动脉成像(CCTA)意外检出肺动静脉畸形(PAVM)的特点。方法回顾性分析2011年8月至2015年5月临床怀疑冠心病行CCTA检查的38153例患者的临床资料,总结意外检出PAVM的部位、形态及大小。结果意外检出PAVM 8例,占0.21‰。共发现9个病灶,全部为单纯型,其中,病灶位于左肺上叶舌段3个,左肺下叶3个,右肺中叶2个,右肺下叶1个,且病灶多较小,直径5~22 mm。结论 CCTA上PAVM的意外检出率为0.21‰。患者临床症状不典型,CCTA检查冠状动脉未见有意义狭窄,扫描野内见肺静脉提前显影和/或畸形的肺血管时,影像医师应常规扩大扫描野评价是否存在肺血管病变。
Objective To summarize the characteristics of pulmonary arteriovenous malformation (PAVM) detected by dual source CT coronary angiography (CCTA). Methods The clinical data of 38,153 patients with clinically suspected coronary heart disease undergoing CCTA from August 2011 to May 2015 were retrospectively analyzed. The location, shape and size of PAVM were detected by accident. The results of accidental detection of PAVM 8 cases, accounting for 0.21 ‰. A total of 9 lesions were found, all of which were simple type. Among them, the lesion was located in the left upper lobe of the tongue 3, left lower lobe 3, middle lobe 2, right lobe 1, and lesser lesions, Diameter 5 ~ 22 mm. Conclusion The accidental detection rate of PAVM on CCTA was 0.21 ‰. Patients with atypical clinical symptoms, CCTA coronary artery stenosis did not see significant, scanning the field to see premature development of pulmonary veins and / or deformity of the pulmonary vessels, the imaging physicians should routinely expand the scanning field evaluation of the existence of pulmonary vascular disease.