Allgayer B, Reiser M, Ries G, Feuerbach S
Eur J Radiol. 1981 Aug;1(3):204-6.
Typical computed tomographic signs of venous thrombosis include the demonstration of the hypodense center (20 to 45 HU) in the involved blood vessel with a hyperdense margin surrounding it. CT represents a reliable method of diagnosis complimentary to that achieved by venography. CT examination allows the visualisation of the proximal end of the thrombus and gives the etiology of the thrombus. Venous thromboses occurring for the first time demonstrate a well defined borderline around the vein with a lack of reaction in the surrounding tissue. On the other hand, recurrent venous thrombosis is characterized by an inhomogenous zone of higher density in the perivascular region. A similar image can be obtained in secondary thrombosis due to inflammatory changes from adjacent tumours. In cases of thrombosis with tumour involvement, the tumour can be demonstrated.
静脉血栓形成的典型计算机断层扫描征象包括受累血管内低密度中心（20至45亨氏单位）的显示，其周围有高密度边缘。CT是一种可靠的诊断方法，可作为静脉造影的补充。CT检查能够显示血栓的近端并明确血栓的病因。首次发生的静脉血栓在静脉周围有清晰的边界，周围组织无反应。另一方面，复发性静脉血栓的特征是血管周围区域密度较高且不均匀。由于邻近肿瘤的炎症改变导致的继发性血栓也可出现类似图像。在伴有肿瘤累及的血栓形成病例中，可显示肿瘤。
