摘要
目的运用320排cT灌注成像技术(CTP)初步了解肝移植术后缺血性胆道病变(ITBL)的肝脏血流灌注特征。方法中山大学附属第三医院自2010年4月至2011年4月11例肝移植术后经PTCD或ERCP确诊为ITBL患者和7例移植术后随访正常患者,分别接受320排CT血管成像(CTA)及CTP检查,两种检查相距5~10min。其中4/11例ITBL患者接受移植肝穿刺活检。测量上述患者肝动脉灌注量(HAP)、门静脉灌注量(PVP)、全肝灌注量(TLP)及肝动脉灌注指数(HPI),通过比较两组间灌注参数差异,分析ITBL患者的肝脏血流灌注特征。结果(1)11例ITBL患者中CTA检查证实无血管并发症3例,单纯性肝动脉狭窄(HAS)1例,HAS合并周围型肝动脉一门静脉瘘(APS)1例,HAS合并门静脉狭窄(PVS)/肝右静脉狭窄(RHVS)2例,单纯性APS1例,单纯性PVS2例,门静脉血栓(PVT)并PV海绵样变1例。4/11例接受移植肝活检中2例证实为轻度急性排斥反应,2例证实为移植胆道阻塞伴有上行性胆道感染。(2)ITBL组与对照组的HAP,(66±38)ml·min^(-1)·(100ml)^(-1)比(40±8)ml·min^(-1)·(100ml)^(-1),P=0.049;PVP,(128±35)ml·min^(-1)·(100ml)^(-1)比(1634±21)ml·min^(-1)·(100ml)^(-1),P=0.031;TLP,(194±58)ml·min^(-1)·(100m1)^(-1)比(203±19)ml·min^(-1)·(100m1)^(-1),P=0.705;HPI,34%±14%比21%±4%,P=0.009。两组间HAP、PVP及HPI的差异均有统计学意义(均P〈0.05),TLP差异无统计学意义(P〉0.05)。结论运用320排CTP技术进行全肝四维灌注分析,能够全面反映移植肝组织的血流动力学状态,无创性评价ITBL患者各种移植肝血流灌注异常。当HAP增高,PVP减低,HPI增高时,亦需注意ITBL发生的可能。
Objective To investigate the value of 320-slies CT perfusion (CTP) imaging in the study of hepatic hemodynamic characters in ischmic-type biliary lesions (1TBL) after liver transplantation. Methods A total of 11 ITBL patients received 320-slice CT angiography (CTA) and CTP after liver transplantation scheduled at 5 - 10 min away. Four patients underwent liver biopsy While 7 patients with normal liver after transplantation were selected as the control group. The parameters of hepatic artery perfusion (HAP), portal vein perfusion (PVP), total hepatic perfusion (TLP) and hepatic arterial perfusion index (HPI) were measured and compared for all patients. And the blood perfusion characters of liver with ITBL after transplantation were analyzed. Results ( 1 ) In 11 ITBL patients, 3 patients had no vascular complications on CTA, 1 with simple hepatic artery stenosis (HAS), 1 with HAS and arterioportal shunt (APS), 2 with HAS and portal vein stenosis/right hepatic vein stenosis (PVS/RHVS), 1 with simple APS, 2 with simple PVS and 1 with portal vein thrombosis and cavernous transformation of portal vein (PVT and CTPV). And 4/11 patients underwent liver biopsy, 2 in which confirmed mild acute rejection and 2 confirmed biliary obstruction associated with ascending biliary infection. (2) HAP of the ITBL and control groups were (66±38) and (40±8) ml· min^(-1)·(100ml)^(-1), PVP (128±35) and (163±21) ml · min^(-1) · (100 ml) ^(-1), TLP (194±58) and (203±19) ml ·min^(-1)· (100 ml)^(-1) HPI 34%± 14% and 21% ± 4% respectively. The differences in the value of HAP, PVP and HPI between the groups were statistically significant ( P 〈 0. 05 ) excluding TLP. Con^lus|on Various liver perfusion abnormalities of ITBL may be evaluated objectively by CTP. ITBL might occured when HAP and HPI increased with a decreased of PVP.
出处
《中华医学杂志》
CAS
CSCD
北大核心
2012年第31期2198-2201,共4页
National Medical Journal of China
基金
广东省科技计划(201013031600053)
教育部第43批留学回国人员科研启动基金
关键词
体层摄影术
X线计算机
肝移植
胆管疾病
移植物
灌注
Tomography, X-ray computed
Liver transplantation
Bile duct diseases
Graft,perfusion