目的探讨多层螺旋CT及MRI对 下腔静脉病的诊断价值。方法 随机选取 我院近2年来收治的86例下腔静脉病变 患者，分析其临床、CT和MRI资料。结 果 下腔静脉病变中，栓子形成共39例， 占45.3%、比例最高，布加综合征19例 (22.1%)，下腔静脉先天畸形10(11.6%)， 下腔静脉外压性改变18例(20.9%)，CT及 MRI均能明确显示病变部位、范围、性 质、密度变化特点、侧枝循环形成及周围 软组织情况。结论 CT、MRI能清楚显示下 腔静脉病变的充盈缺损、管腔狭窄、侧支 血管形成、静脉畸形等,有助于病变的诊 断和手术方案的制定。

Objective To investigate the diagnostic value of multi-slice spiral CT and MRI in patients with inferior vena cava（IVC）abnormalities. Methods CT and MRI manifestations, clinical data of 86 cases with IVC abnormalities were analyzed retrospectively. Results Of 86 cases, 39 cases (45.3%) of IVC thrombosis , 19 cases (22.1%) of Budd-Chiari syndrome, 10 cases of congenital IVC abnormalities, 18 cases (20.9%) of IVC stenosis which caused of external pressure. The location, range, quality, change of the density, formation of the collateral circulatio and the soft tissue around were detected on CT and MRI. Conclusion The CT and MRI displayed the features of the IVC abnormalities such as filling defects, luminal stenosis of IVC, collateral pathway and the venous malformation, which helps to make an accurate diagnosis and choose the operation methods.