中国医学影像技术
中國醫學影像技術
중국의학영상기술
CHINESE JOURNAL OF MEDICAL IMAGING TECHNOLOGY
2009年
10期
1813-1816
,共4页
体层摄影术%X线计算机%灌注%活体供者%肝移植%充血
體層攝影術%X線計算機%灌註%活體供者%肝移植%充血
체층섭영술%X선계산궤%관주%활체공자%간이식%충혈
Tomography%X-ray computed%Perfusion%Living donors%Liver transplantation%Hyperemia
目的 比较活体肝移植术后1个月患者与无肝脏病变者的CT灌注参数,评价移植物肝右静脉和肝中静脉所引流区域血流动力学的改变.方法 对肝移植术后1个月、临床无术后并发症的20例患者及对照组25名正常志愿者行动态16排螺旋CT灌注扫描.CT灌注扫描后,选取适当靶层面,将每一层面的移植物按照肝右、肝中静脉引流区分为淤血区、淤血风险区和参考区,对照组亦作类似分区,并分别绘制出时间-密度曲线(TDC)和灌注图像,计算相关灌注参数值和相对灌注差异(RPD).结果 肝移植术后围手术期患者前段易淤血区、淤血风险区相对灌注差异RPD分别为:BF (44.56±43.19)ml/(min·100 g)和(25.41±27.49)ml/(min·100 g),BV (3.91±2.45)ml/100 g和(2.15±1.86)ml/100 g,PVP (41.50±39.15)ml/(min·100 g)和(22.66±23.82)ml/(min·100 g);前段BF、BV、PVP的相对灌注差异RPD与对照组间的差异有统计学意义(P<0.0001),淤血风险区BF、BV、PVP差异亦有统计学意义(P＜0.01).结论 肝移植术后围手术期,肝右静脉和肝中静脉所引流肝段血流动力学存在差异;与肝右静脉引流区相比,肝中静脉单独引流的前段灌注最低,肝右、肝中静脉共同引流区次之.
目的 比較活體肝移植術後1箇月患者與無肝髒病變者的CT灌註參數,評價移植物肝右靜脈和肝中靜脈所引流區域血流動力學的改變.方法 對肝移植術後1箇月、臨床無術後併髮癥的20例患者及對照組25名正常誌願者行動態16排螺鏇CT灌註掃描.CT灌註掃描後,選取適噹靶層麵,將每一層麵的移植物按照肝右、肝中靜脈引流區分為淤血區、淤血風險區和參攷區,對照組亦作類似分區,併分彆繪製齣時間-密度麯線(TDC)和灌註圖像,計算相關灌註參數值和相對灌註差異(RPD).結果 肝移植術後圍手術期患者前段易淤血區、淤血風險區相對灌註差異RPD分彆為:BF (44.56±43.19)ml/(min·100 g)和(25.41±27.49)ml/(min·100 g),BV (3.91±2.45)ml/100 g和(2.15±1.86)ml/100 g,PVP (41.50±39.15)ml/(min·100 g)和(22.66±23.82)ml/(min·100 g);前段BF、BV、PVP的相對灌註差異RPD與對照組間的差異有統計學意義(P<0.0001),淤血風險區BF、BV、PVP差異亦有統計學意義(P＜0.01).結論 肝移植術後圍手術期,肝右靜脈和肝中靜脈所引流肝段血流動力學存在差異;與肝右靜脈引流區相比,肝中靜脈單獨引流的前段灌註最低,肝右、肝中靜脈共同引流區次之.
목적 비교활체간이식술후1개월환자여무간장병변자적CT관주삼수,평개이식물간우정맥화간중정맥소인류구역혈류동역학적개변.방법 대간이식술후1개월、림상무술후병발증적20례환자급대조조25명정상지원자행동태16배라선CT관주소묘.CT관주소묘후,선취괄당파층면,장매일층면적이식물안조간우、간중정맥인류구분위어혈구、어혈풍험구화삼고구,대조조역작유사분구,병분별회제출시간-밀도곡선(TDC)화관주도상,계산상관관주삼수치화상대관주차이(RPD).결과 간이식술후위수술기환자전단역어혈구、어혈풍험구상대관주차이RPD분별위:BF (44.56±43.19)ml/(min·100 g)화(25.41±27.49)ml/(min·100 g),BV (3.91±2.45)ml/100 g화(2.15±1.86)ml/100 g,PVP (41.50±39.15)ml/(min·100 g)화(22.66±23.82)ml/(min·100 g);전단BF、BV、PVP적상대관주차이RPD여대조조간적차이유통계학의의(P<0.0001),어혈풍험구BF、BV、PVP차이역유통계학의의(P＜0.01).결론 간이식술후위수술기,간우정맥화간중정맥소인류간단혈류동역학존재차이;여간우정맥인류구상비,간중정맥단독인류적전단관주최저,간우、간중정맥공동인류구차지.
Objective To compare CT perfusion changes of patients 1 month after living liver transplantation with healthy volunteers. Methods Twenty perioperative patients without complications and 25 healthy volunteers underwent dynamic multi-slice CT scan. On each targeted slice, liver was divided into 3 regions of interest (ROI) according to hepatic venous drainage, i.e. anterior segment area drained by middle hepatic veins (MHV) which was most likely congested, risk area drained by both MHV and RHV which was posterior to anterior segment, reference area drained by RHV. Perfusion parameters and relative perfusion difference were calculated.Results The relative perfusion differences of anterior segment and risk area in study group were as follows: BF 44.56±43.19 vs 25.41±27.49 ［ml/(min〖DK〗·100 g)］; BV 3.91±2.45 vs 2.15±1.86(ml/100 g); PVP 41.50±39.15 vs 22.66±23.82 ［ml/(min·100 g)］. Significant differences of RPDs of BF, BV and PVP were found in anterior segment (P<0.0001) and risk area (P＜0.01) compared with control group.Conclusion In perioperative period, there are hemodynamic differences in hepatic segments drained by RHV and MHV. BF, BV, PVP of anterior segment decreases obviously.
