上腔静脉阻塞的CT表现及其临床意义

CT Findings and Clinical Value of the Superior Vena Cava Obstruction

本文总结了１７例上腔静脉阻塞（ＳＶＣＯ）的ＣＴ增强检查，旨在观察其ＣＴ表现，并评价其临床意义。其中男１１例，女６例。肺癌１３例，恶性胸腺瘤２例，胸腺囊肿１例，淋巴瘤１例。完全性ＳＶＣＯ者７例均显出有侧枝血管充盈（４～１０支），其中６例有典型的临床表现。不全性ＳＶＣＯ１０例，除１例显示１支血管外，余均未见侧枝充盈，其ＳＶＣ管径与９例对照组相比显著缩小。结果表明，侧枝血管的有无是确定完全性或不全性ＳＶＣＯ的条件，其灵敏度及特异性分别为１００％及９０％，ＣＴ检查对无症状和体征的ＳＶＣＯ有诊断价值。

This paper reported 17 cases of superior vena cava obstruction(SVCO) with enhanced CT scan. The purpose is to observe the CT findings and its clinical value The causes were lung cancer(n=13)、malignant thymoma(n=2), cyst of thymus (n=1) and lymphoma (n=1) The result showed complete SVCO in 7 cases with collateral vessels (n=4～10).of which 6 cases had typical clinical manifestations of SVCO Ten cases but one were incoimplete without collateral vessels, but the diameter of SVC was much smaller than that of normal group.The conclusion is that whether there is collateral vessels or not is criteria of diagnosing SVCO,with a sensitivity of 100%and a specificity of 90% The enhanced CT examination is valuable for SVCO in patients who have no clinical symptoms or signs.