A research article to be published on August 7, 2009 in the World Journal of Gastroenterology addresses this question. Contrast-enhanced ultrasound (CEUS) has been applied gradually in recent years because of its fine vascular tracing and perfusion visualization. A research team led by Professor Yan Luo from West China Hospital found that CEUS improved the flow visualization of the hepatic artery, portal and hepatic veins and bridging vein, as well as evaluation of liver graft parenchyma perfusion. CEUS has high sensitivity and specificity for finding hepatic artery thrombosis, hepatic artery stenosis, portal vein thrombosis and liver infarction. CEUS can be performed at the bedside, and has no iodine allergy or X-ray exposure. Therefore, this new technique should be used more frequently after liver transplantation.
Although this study included a limited number of patients, the research is interesting and the results are useful for diagnosis of vascular complications early after liver transplantation.
Reference: Luo Y, Fan YT, Lu Q, Li B, Wen TF, Zhang ZW. CEUS: A new imaging approach for postoperative vascular complications after right-lobe LDLT. World J Gastroenterol 2009; 15(29): 3670-3675
http://www.wjgnet.com/1007-9327/15/3670.asp
Correspondence to: Yan Luo, Professor, Department of Sonography, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China. luoyand@hotmail.com
Telephone: +86-28-85423192 Fax: +86-28-85423192
World Journal of Gastroenterology