The Value of Color Doppler Ultrasonography in Monitoring Hemodynamic Changes in Patients with Hyperdynamic Circulatory State before and after Orthotopic Liver Transplantation / 中国医学影像学杂志

ABSTRACT

Purpose:The value of color doppler ultrasonography( CDUS) in monitoring hemodynamic changes was investigated in patients with hyperdynamic circulatory state before and during 730 days after orthotopic liver transplantation.Materials and Methods:83 cases of orthotopic liver transplantation (OLT) were examined by CDUS to assess the hemodynamic changes of portal vein,hepatic artery,splenic artery and longitudinal diameter of the spleen ( LDS).Results:(1) Portal flow velocity ( PFV) was significantly lower in pre-OLT but higher than controls (P < 0.05 ) during 730 days after OLT.Resistance index of the hepatic artery ( HARI) in pre-OLT and within 7 days- after OLT was significantly higher (P<0.05).(2) Resistance index of splenic artery ( SARI) was also significantly higher in pre-OLT (P < 0.05 ).LDS was significantly higher after OLT than in both pre-OLT phase and controls(P<0.05).Conclusions: In early stage after OLT,HARI changed from high to low value and so did PFV,which kept the stability of hepatic blood flow.In late stage,high PFV and large spleen improved,but could not back to normal.