Evaluation of acute rejection after liver transplantation with acoustic radiation force impulse and color Doppler flow imaging
10.3760/cma.j.issn.1004-4477.2015.07.011
- VernacularTitle:声脉冲辐射力成像结合彩色多普勒血流显像诊断肝移植术后急性排异反应的临床价值
- Author:
Ying TANG
;
Jingwen ZHAO
;
Hongtao WU
;
Jing LIU
;
Yang LIU
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Liver transplantation;
Transplant rejection;
Acoustic radiation force impulse technique
- From:
Chinese Journal of Ultrasonography
2015;(7):589-591,592
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of acoustic radiation force impulse (ARFI)and color Doppler flow imaging (CDFI)in the diagnostic of acute rejection (AR)after liver transplantation.Methods B mode ultrasound,CDFI and ARFI exams were performed on fifty-eight patients who was diagnosed with AR through liver biopsy in our hospital.The liver allograft size,mean velocity of portal vein,hepatic vein spectrum waveform and shear-wave velocity were obtained and compared with the results of 30 healthy subjects as control group.Results Compare to control group,the AR group had a significant increase in liver allograft,decrease in mean velocity of portal vein,the elimination of triphasic wave of hepatic vein,and a significant increase in shear-wave velocity (P =0.000,0.000,0.007,0.000,respectively).The correlation coefficient between four criteria and grouping was 0.478,0.557,0.286,0.483,respectively.The area under ROC curves for diagnosing AR using the four criterias mentioned above was 0.914.Conclusions Combination of CDFI and ARFI in diagnosing of AR after liver transplantation has higher sensitivity and accuracy.
