| 边杰,沙琳,郭启勇.三维动态增强磁共振血管成像评价原位肝移植受体血管[J].中国医学影像技术,2005,21(5):742~744 |
| 三维动态增强磁共振血管成像评价原位肝移植受体血管 |
| Three-dimensional dynamic contrast enhanced MR angiography in original liver transplantation |
| 投稿时间：2005-01-04 修订日期：2005-04-08 |
| DOI： |
| 中文关键词: 磁共振成像 肝移植 血管 |
| 英文关键词:Magnetic resonance imaging Liver transplantation Vascular |
| 基金项目:本课题受大连市科委基金项目资助(2004B3SF141)。 |
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| 中文摘要: |
| 目的 探讨三维动态增强磁共振血管成像(3D-DCE-MRA)对原位肝移植(OLT)术前受体血管的评价价值。方法 以手术病理为金标准,回顾性分析30例肝移植患者术前的3D-DCE-MRA图像,包括动静脉血管的信噪比、对血管变异的显示及血管管径测量的准确性。结果 30例OLT患者术前3D-DCE-MRA检查均获成功。动脉平均信噪比20.58±3.74,门静脉平均信噪比13.43±4.12;肝动脉解剖变异5例,其中MichelsⅡ型1例、MichelsⅢ型2例、 MichelsⅤ型1例及MichelsⅥ型1例,门静脉高压侧支循环建立17例, 肝动脉轻度狭窄2处,中度以上狭窄4处,腹腔干起始部狭窄1处,第二肝门处静脉系统狭窄3处,3D-DCE-MRA均准确显示。结论 3D-DCE-MRA可以清晰显示肝动脉、门静脉及第二肝门处的肝静脉和下腔静脉。可以对肝动脉的变异和狭窄、门静脉高压侧支循环建立以及第二肝门情况做出准确评价。3D-DCE-MRA可以作为原位肝移植术前受体血管评价的首选检查方法。 |
| 英文摘要: |
| Objective To detect the value of 3D dynamic contrast enhanced MR angiography (3D-DCE-MRA) in the assessment of receptor vessels before original liver transplantation (OLT). Methods Surgery and pathological records were defined as golden criteria. Thirty cases of OLT were analyzed retrospectively to assess image quality of MRA, including signal to noise ratio of arteries and veins, display of vascular mutation and the veracity in vascular diameter measurement. Results All 30 cases of 3D-DCE-MRA were succeeded. Mean signal to noise ratio of artery was 20.58±3.74, and that of portal vein was 13.43±4.12. Five cases had anatomic mutation in hepatic arteries, including 1 cases of Michels typeⅡ, 2 cases of Michels typeⅢ, 1 case of Michels typeⅤand 1 case of Michels typeⅥ.Seventeen cases had collateral circulation establishment of portal vein, which were clearly showed with 3D-DCE-MRA. 3D-DCE-MRA precisely assessed 2 cases of mild stenosis, 4 cases of more than moderate stenosis in hepatic arteries, 1 case of stenosis at the start site of abdominal trunk, and 3 cases of stenosis of veins at the second hepatic door. Conclusion 3D-DCE-MRA could clearly show hepatic arteries, portal vein and hepatic veins at the second hepatic door and inferior vena cava, and may accurately assess hepatic arterial mutation and stenosis, dilation of portal vein and collateral circulation establishment. It may be the first choice for receptor vascular assessment before OLT. |
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