Hidajat N, Vogl T J, Möller M, Bechstein W O, Felix R
Strahlenklinik und Poliklinik, Virchow-Klinikum der Medizinischen Fakultät, Humboldt-Universität zu Berlin.
Rofo. 1996 Nov;165(5):445-51. doi: 10.1055/s-2007-1015787.
To analyse the efficacy of intravenous spiral CT angiography (SCTA) for the evaluation before orthotopic liver transplantation (oLT) compared with DSA.
Spiral CT was performed on 31 potential recipients of a liver graft in order to examine hepatic vessels, coeliac axis, splenic artery and superior mesenteric artery. The arterial vessels were reconstructed in "Maximum Intensity Projection (MIP)" and "Shaded Surface Display (SSD)"-technique. The axial images, MIP and SSD were compared in 25 patients with DSA with regard to the visualisation of the vascular anatomy, detectability of stenosis and vascular diameters.
The type of arterial liver supply could be determined via SCTA in all patients. Stenosis of the coeliac axis was seen in ten patients on the DSA, MIP and SSD and in eight patients on the axial images. Occlusion of the hepatic artery was clearly visualised in two patients on the DSA, axial images and MIP and in one patient on the SSD. There was no false positive diagnosis with SCTA. SSD was seen as the best technique to visualise the vessels without overshadowing. There were no significant differences between the diameters measured from the axial images, MIP and SSD images in transversal direction and the DSA images (p > 0.05).
SCTA is a greatly promising method for the imaging of vessels supplying the liver before oLT, and may convey more diagnostic information than DSA.
分析静脉螺旋CT血管造影（SCTA）在原位肝移植（OLT）术前评估中的疗效，并与数字减影血管造影（DSA）进行比较。
对31例潜在的肝移植受者进行螺旋CT检查，以观察肝血管、腹腔干、脾动脉和肠系膜上动脉。采用“最大密度投影（MIP）”和“表面阴影显示（SSD）”技术重建动脉血管。将25例患者的轴位图像、MIP和SSD与DSA在血管解剖可视化、狭窄检测和血管直径方面进行比较。
所有患者均可通过SCTA确定肝动脉供血类型。DSA、MIP和SSD显示10例患者腹腔干狭窄，轴位图像显示8例患者腹腔干狭窄。DSA、轴位图像和MIP显示2例患者肝动脉闭塞，SSD显示1例患者肝动脉闭塞。SCTA无假阳性诊断。SSD被认为是显示血管且不产生遮挡的最佳技术。轴位图像、MIP和SSD图像在横向上测量的直径与DSA图像之间无显著差异（p>0.05）。
SCTA是OLT术前肝脏供血血管成像的一种极有前景的方法，可能比DSA传达更多的诊断信息。
