摘要
目的评价儿童冠状动脉异常起源肺动脉的多层螺旋CT（MSCT）诊断价值。资料与方法MSCT应用于8例冠状动脉异常起源肺动脉患儿检查中，平均年龄4．12岁（5个月～10岁），其中4例采用无心电门控CT血管成像，MSCT参数：准直0．625～1．25mm，层厚0．625～1．25mm，螺距为0．562，旋转速度0．5s／r，床进5．62mm／r，0．31～0．625mm重建间隔，4例采用回顾性心电门控。结果8例冠状动脉起始、右冠状动脉近端、左冠状动脉主干、左前降支及左回旋支近端显示率100％。7例左冠状动脉异常起源于肺动脉瓣窦上的肺动脉总干，1例右冠状动脉异常起源于肺动脉总干右后壁，1例伴右上肺静脉异位引流入上腔静脉，1例伴右冠状动脉高位开口。结论冠状动脉异常起源肺动脉为少见的先天性心脏病，MSCT可作为一种可靠的，有潜力的无创伤性诊断方法应用于其诊断中。
Objective To evaluate the value of 16 slice spiral CT in diagnosis of anomalous origin of the coronary artery from the pulmonary artery. Materials and Methods 8 children （mean age 4.12 years, age range 5 month to 10 years） with anomalous origin of the coronary artery from the pulmonary artery were studied by 16 slice CT. Multi slice CT （MSCT） with or without ECG gating was performed in 4 cases respectively. Parameters included ： gantry time 0.5s, collimation 0. 625 1.25ram, thickness 0.625 - 1.25ram, pitch 0.562, and reconstruction interval 0.31 - 0.625mm. Results The percent- age of visibility was 100% for the left main coronary artery,proximal segment of the left descending and left circumflex coro- nary artery, and origin and proximal segment of the fight coronary artery. There were 7 cases with anomalous origin of the left coronary artery from the pulmonary artery, 1 case with right coronary artery arising from the main pulmonary artery. Of the 8 cases, i case was associated with partial anomalous pulmonary venous return, 1 case with high takeoff of the right coronary artery. Conclusion Anomalous origin of the coronary artery from the pulmonary artery is a rare congenital heart disease, MSCT can be considered as a non-invasive and reliable imaging technique for diagnosis of congenital coronary artery anomaly.
出处
《临床放射学杂志》
CSCD
北大核心
2008年第9期1251-1254,共4页
Journal of Clinical Radiology
