MRI一站式综合扫描对活体肝移植的应用价值

MRI one -stop-comprehensive shop scan for living donor liver transplantation

目的研究MRI一站式综合扫描对活体肝移植的应用价值。方法选择活体肝移植的患者及供体各20名。进行MRI扫描,包括3.0T磁共振采用常规血管四期增强扫描。磁共振平扫采用flash序列及TSE序列扫描。血管增强后选择与平扫相同的T_1 vibe压脂序列进行扫描。依据个体需要,在注射后40～120 min之间进行延迟扫描。以手术所见为参考标准,比较MRI平扫与一站式MRI综合扫描(MRI平扫+MRCP+血管增强+肝实质增强+延迟)对病灶检出的敏感度,评估其诊断价值。结果 MRI平扫对供体/受体血管变异、胆道变异和癌变的检出敏感性分别为40.0%、72.22%、75.0%。而一站式MRI扫描对病灶检出的敏感性都为100.0%,两种方法对后两种病变的敏感性比较差异有统计学意义(P<0.05)。结论在活体肝移植中一站式MRI综合扫描检查具有重要价值。

Objective To study the MRI one - stop comprehensive scan for liver donor living transplantation. Methods Twenty liver transplant patients and 20 donors were included in the study. 30T magnetic resonance enhanced scanning with conventional 4 - phase. MRI scan was performed using flash sequences and TSE sequential scanning. After vascular enhancement , the same as and unenhanced T1 vibe fat suppressing sequence scanning was chosen. According to individual＇s needs, delayed scan between 40 - 120 minutes after injection was conducted the scans were divided randomly into MRI scan and one - stop comprehensive MRI scan （ MRI scan ＋ MRCP ＋ enhanced ＋ vascular liver parenchyma enhanced ＋ delayed） Compared with operative findings, their diagnostic value was assessed on the basis of detection sensitivity. Results The sensitivities of detecting donor/recipient vessel variation, biliary variation, and eanceration for MRI scan were 40.0%, 72.22%, and 75.0% respectively . The lesions detection sensitivity of one - stop comprehensive MRI scan was 100% ,The difference between the two groups was statistically significant （P 〈 0.05 ）. Conclusions In living donor liver transplantation, one - stop comprehensive MRI scan is of important value.