持續性左側上腔靜脈的CT診斷

Diagnosis of Persistent Left Superior Vena Cava with CT Scan

楊文彥(Wen-Yen Young) ； 蔡熒煌(In-Hwan Tsai) ； 藍端熙(Ray-See Lan) ； 謝文斌(Wen-Bin Shieh) ； 李政輝(Chen-Hei Lee)

《中華放射線醫學雜誌》 11卷3期 (1986/09) Pp. 261-264

摘要

持續性左側上腔靜脈(persistent left superior vena cava)是發育上的異常，並不常見，在一般人口約佔0.5%，在有先天性心臟病人中較常見約佔3%，以往都是藉著血管攝影來檢查，長庚醫院最近有1例因縱膈腔發炎引起敗血性休克而無法接受血管攝影檢查，因而改用CT scan（電腦斷層攝影computer tomography）來檢查，結果發現病人除了縱膈腔發炎外，並且還有持續性左側上腔靜脈，藉由高解像力的CT影像，可以發現它經冠狀竇(coronary sinus)而注入右心房，因此我們認為對於持續性左側上腔靜脈，CT scan是一種清楚、安全且非侵襲性的診斷方法。

並列摘要

Persistent left superior vena cava is an uncommon developmental anomalies. It frequent associated with congenital heart disease. It usually diagnosted by angiography. We present a case of medi-astinitis with persistent left superior vena cava, which was digagnosted by CT scan. CT scan finding of persistent left superior vena cava are as follows: A tubular structure over left side of aorta and left pulmonary artery, a dilated coronary sinus and drainage contrast medium into right atrium.
CT scan is highly reliable in diagnosing persistent left superior vena cava especially when pt's condition was unstable. The embryology of persistent left superior vena cava, types and their clinical significant are discussed.