【摘要】 目的:探讨多层螺旋CT(MSCT)对肝脏血管的显示能力和测量肝脏体积的准确性。方法:40例患者行肝脏MSCT双期增强扫描,并对所有病例进行MSCT肝脏血管重建,采用阈值法和层切法对全肝、肝叶体积进行测量,其中19例与手术和数字减影血管造影(DSA)结果进行对比。结果:肝动脉、门静脉、肝静脉血管变异发生率分别为25.0%、2.5%、12.5%;层切法测量全肝及肝右叶平均体积分别为(1269±345)ml、(726±199)ml,阈值法测量全肝及肝右叶体积分别为(1250±346)ml、(713±198)ml,2种方法测量结果差异无统计学意义(P> 0.05);肝右叶切除患者MSCT测量与实际肝右叶体积差异无统计学意义(P>0.05)。结论:MSCT可准确评价肝脏血管和肝脏体积,具有较高的临床应用价值。更多还原

【Abstract】 Objective: To evaluate the accuracy and value of MSCT for the displaying liver vessels and determining the total and lobar liver volumes. Methods: Forty patients underwent MSCT scan and proceed liver vessel reconstruction. Measurement of hand tracing and threshold were used to calculate the total liver volume and of the right lobe, respectively. Results: The incidence of anatomic variants were 25%,2. 5% and 12. 5% for hepatic arteries ,portal vein and hepatic veins ,respectively. The mean volume of the entire liver and right lobe was (1 269±345)ml and (726±199)ml, respectively , for the hand tracing method; while (1 250±346)ml and (713±198)ml, respectively, for the method of threshold. There was no significant statistically difference between the two methods in measuring total or lobar liver volumes (P>0. 05). There was significant agreement between right lobe volumes measured by each methods and actual right lobe volumes obtained in 10 cases at surgery (r= 0. 964 7, 0. 984 2, P <0. 01). Conclusions: MSCT can provide accurate information about the hepatic vessels anatomy and in the measurement of the entire and lobar liver volume, it is reliable in clinical practice.更多还原