MSCTA对活体右叶供肝血管变异分型的研究

目的：探讨活体肝移植术前多层螺旋CT血管成像对潜在供肝血管系统评估的临床运用及价值。方法：对连续108例潜在右半肝供体行3期CT增强扫描（动脉期、门静脉期和肝静脉期）。根据所有原始图像和重组图像进行供肝的血管变异分型,肝动脉、门静脉以及肝静脉系统分别进行Michels分型、Akgul分型及Nakamura分型。对其中45例行右半肝切除的供体的肝血管变异分型与术中发现进行比较。结果：108例潜在供体的肝动脉、门静脉和肝静脉系统在MSCT上均显示清晰。根据肝动脉Michels分型,Ⅰ型有64例（59.3%）,Ⅱ型9例（8.3%）,Ⅲ型13例（12.0%）,Ⅳ型4例（3.7%）,Ⅴ型11例（10.2%）,Ⅵ型3例（2.8%）,Ⅷ型和Ⅸ型各2例（1.9%）。根据门静脉Akgul分型,A型有87例（80.6%）,B型有15例（13.9%）,C型4例（3.7%）,E型3例（2.8%）。根据肝静脉Nakamura分型,Ⅰ型有73例（67.6%）,Ⅱ型24例（22.2%）,Ⅲ型11例（10.2%）。45例进行手术的供体的术前CT血管分型结果与术中发现一致。结论：多层螺旋CT血管成像可良好地显示潜在供肝的血管系统,对活体肝移植术具有重要的临床应用价值。

Multi-slice CT Angiography in the Classification of Hepatic Vessel Variations in Right Hepatic Lobe Donor in Vivo for Liver Transplantation

Objective:To discuss the clinical application and its value of multi-row detector CT angiography (MDCTA) in the evaluation of hepatic vessel anatomy of potential liver donors in vivo for liver transplantation (LDLT).Methods:One hundred and eight consecutive potential right lobe donors in vivo underwent tri-phasic CT angiography (arterial,portal,and hepatic venous phases).All source and reconstructed images were evaluated for hepatic vasculature anatomy.The anatomic variations of arterial system,portal venou...