能谱CT对婴幼儿肝移植供体血管成像的评估  

Preoperative Evaluation of the Vessels in Living Donors before Pediatric Liver Transplantation by Gemstone Spectral CT

作　　者：张婷婷[1] 白玫[2] 赵丽琴[1] 胡志海[1] 何青[1] 魏林[3] 宋玉伟[3] 贺文[1] 

机构地区：[1]首都医科大学附属北京友谊医院放射科,北京100050 [2]首都医科大学附属宣武医院医工处,北京100053 [3]首都医科大学附属北京友谊医院普外科,北京100050

出　　处：《CT理论与应用研究（中英文）》2014年第6期895-903,共9页Computerized Tomography Theory and Applications

基　　金：国家自然科学基金(青年科学基金)(81201092:基于能谱CT与碘分布对门静脉高压血流动力学演变规律的研究);国家科技支撑计划课题(2011BAI02B02:医用光学与放射影像设备计量标准及溯源体系研究)

摘　　要：目的:探讨能谱CT最佳单能量图像在30例婴幼儿肝移植供体术前影像评估中的应用价值。方法:对30例供者做术前能谱CT检查。对肝动脉、门静脉和肝静脉做单能CT和混合能量CT的CT血管造影(CTA)。测量供者的肝脏总体积及模拟切除体积,并与术中切除标本对照。结果:单能CT在50 ke V时的肝内血管CTA成像质量优于混合能量CT(P<0.001)。供者肝脏各血管变异情况均在CTA得以显示。结论:能谱CT单能CTA作为婴幼儿肝移植供体术前评估的一种方法,可以获得良好的血管与软组织对比,保证血管CT成像的质量和评估的准确性。Objective： The purpose of the study was to discuss the application value of spectral CT in preoperative imaging evaluation of the living donor’s vessels in pediatric liver transplantation. Methods： Preoperational spectral CT scan was performed for 30 living donors. CTA were performed, both monochromatic and combined energetic, on their hepatic artery and vein, also the portal vein. The donor’s total volume and the planning cutting part was measured respectively and compared with the real replanting liver volume. Result： The monochromatic CTA imaging quality of the liver vessels at 50 ke V is better than the combined one（P 〈 0.001）. And the anatomical variation of the donor’s liver vessels could be shown very clear by CTA. Conclusion： As one of the methods of the preoperative evaluation of the living donor’s liver in pediatric liver transplantation, the monochromatic CTA could show high quality contrast image between the vessels and the soft tissues, and guarantee the quality of vessel reconstruction image and the accuracy of assessment.

关 键 词：婴幼儿肝移植 供体 能谱CT 

分 类 号：R726.5[医药卫生—儿科] R816.92[医药卫生—临床医学]