摘要
目的为研究不同部位肝脏实质组织对门静脉管壁运动是否有影响,应用速度向量成像(VVI)技术测量门静脉主干(PV)、门静脉左支矢状部(LPV)以及门静脉右支主干(RPV)管壁短轴方向的运动速度、应变及应变率,分析其特点及关系.方法健康青壮年30例,用VVI技术测量门静脉管壁短轴方向管壁运动最大速度(Vmax)、最大应变(Smax)及最大应变率(SRmax).结果整体健康青壮年PV、LPV及RPV管壁短轴方向Vmax、Smax及SRmax比较差异均无统计学意义(P >0.05),下腔静脉及腹主动脉搏动对于门静脉管壁运动的影响不明显,男性与女性的相应数值比较差异无统计学意义(P >0.05).结论VVI技术检测健康人群PV、LPV及RPV的Vmax、Smax及SRmax,可为肝脏形态观察提供参考价值.
Abstract
Objective To explore the portal vein(PV) do influence the tissue of the liver or not, using the initial application of velocity vector image(VVI) in the evaluation of the velocity of movement, the strain and the strain rate characteristics in the healthy youth,the chronic hepatitis and the hepatic cirrhosis with ascites' PV, left portal vein(LPV) and right portal vein(RPV) wall as altitudely scanning, and to analyze the relationship. Methods The PV,LPV and RPV of 30 healthy people, 30 patients of chronic hepatitis and 18 patients of hepatic cirrhosis with ascites in experimental groups were scanned altitudely to measure the maximal velocity(Vmax), the maximal strain(Smax) and the maximal strain rate(SRmax) on the circumference wall. Results There is no statistically significant difference(P >0.05) of the Vmax,Smax and SRmax between the PV wall, the LPV wall and the RPV wall in healthy group. There is no statistically significant difference(P >0.05) of the Vmax, Smax and SRmax between the man and the woman. The pulsation of abdominal aorta and inferior vena cava does not obviously affect the PV. Conclusions VVI is an effective, no wound and quantification technique in evaluation of the PV, LPV and RPV maximal velocity of movement, the maximal strain and the maximal strain rate in the healthy people, which can observe the shape and function of liver.
NETL
NSTL
维普
万方数据