Gomes M N, Hakkal H G, Schellinger D
Comput Tomogr. 1978;2(2):99-109. doi: 10.1016/0363-8235(78)90007-8.
CT scanning has been successfully used in the evaluation of the abdominal aorta in over 70 patients. Half of this group, with abdominal aneurysms, was also studied by ultrasonography and the results compared. Both techniques proved equally reliable in the diagnosis of this entity. Closer correlation to the aneurysmal diameter measured at surgery was obtained by CT scanning; underestimation of size by ultrasonography was a frequent finding. Aortic lumen and intra-aneurysmal thrombus were also more clearly demonstrated by CT when contrast enhancement was added. Evaluation of aneurysmal length is done more effectively by ultrasonography although sagittal reconstruction by CT has been now attempted.
CT扫描已成功用于评估70多名患者的腹主动脉。该组中有一半患有腹主动脉瘤的患者也接受了超声检查，并对结果进行了比较。两种技术在诊断该疾病方面都同样可靠。CT扫描与手术时测量的动脉瘤直径的相关性更强；超声检查经常低估动脉瘤大小。当增加对比增强时，CT也能更清晰地显示主动脉腔和瘤内血栓。尽管现在已经尝试通过CT进行矢状面重建，但超声检查在评估动脉瘤长度方面更有效。
