Abstract
The purpose of this study was to identify the specific Doppler criteria for the portal vein as well as the spleen length or volume in liver transplants. A relative study was done after performing venous Doppler sonographic studies in 45 liver transplant cases (4 whole liver, 41 lobar) with no known vascular complications. The ultrasonic Doppler study were targeted to the portal vein flow direction, flow velocity in Doppler level and the caliber in gray scale level. Average gray scale and color flow mapping appearances as well as normal monophasic wave character was found. The following Doppler parameters were evaluated: for the portal veins, venous pulsatility index. There were no cases of portal vein obstruction found in our sample (neither stenosis, nor occlusion). Mean portal vein velocity was (less than 55 cm /s), the splenic length was (13.7±1.5). The relation between the portal venous index, and the splenic length was built. Both are useful parameters for diagnosing liver transplants complications.
Highlights
Liver transplantation is the only curative treatment for end-stage liver disease
Detection of vascular complications by postoperative Doppler imaging has played a vital role in decreasing the incidence of graft failure
Role of Doppler Ultrasound in Postoperative Evaluation Vascular complications are a common cause for allograft failure after hepatic transplantation. (Duffy JP, et al 2009)
Summary
The common indications for liver transplantation include cirrhosis secondary to alcoholic liver disease, hepatitis, hepatocellular carcinoma, non-alcoholic steatohepatitis, cholestatic and metabolic diseases, and fulminant hepatic failure, in Sudan bilharzia is still the main cause. Detection of vascular complications by postoperative Doppler imaging has played a vital role in decreasing the incidence of graft failure. We discuss the color Doppler imaging findings after liver transplantation for accurate and early detection of vascular complications. Role of Doppler Ultrasound in Postoperative Evaluation Vascular complications are a common cause for allograft failure after hepatic transplantation. Detection and treatment of vascular complications help reduce the incidence of graft failure. Along with evaluation of the hepatic parenchyma, attention is paid to the presence any perihepatic fluid collection. Doppler examination of the liver transplant involves interrogation of the main hepatic artery and its intrahepatic branches, main portal vein and its branches, hepatic veins, and the IVC
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