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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 article summarizes the 17 cases of superior vena cava occlusion (SVCO) CT enhanced examination, to observe the CT findings, and evaluate the clinical significance. Including 11 males and 6 females. 13 cases of lung cancer, 2 cases of malignant thymoma, 1 case of thymus cyst and 1 case of lymphoma. Complete SVCO in 7 cases showed collateral vessel filling (4 to 10), of which 6 cases have a typical clinical manifestations. 10 cases of incomplete SVCO, in addition to 1 case showed a blood vessel, I have no more than the lateral charge, the SVC diameter and 9 cases compared to the control group was significantly reduced. The results showed that the presence or absence of collateral vessels was the condition to determine complete or incomplete SVCO with sensitivity and specificity of 100% and 90%, respectively. The CT scan was valuable for the diagnosis of asymptomatic and signs SVCO.