Abstract
Despite the increasing success of pancreatic transplantation for diabetes, rejection remains the most common cause of graft loss. The purpose of this study was to correlate gray-scale sonographic morphology and Doppler resistive index (RI) with acute pancreatic transplant rejection as determined by percutaneous, sonographically guided biopsy of the pancreas. Fifty-one sonograms of 36 patients were correlated with sonographically guided biopsies performed for clinically suspected acute rejection. Sonographic studies consisted of gray-scale morphologic assessment of gland size, texture, marginal definition, peripancreatic fluid, and duct dilatation as well as measurement of the average Doppler RI. Biopsies were performed within 48 hr of sonography. After localization by sonography, we performed percutaneous biopsy with an 18-gauge automated biopsy device. Biopsy findings were acute rejection (n = 40, 78%), chronic rejection (n = 2, 4%), and no evidence of rejection (n = 9, 18%). Procedure-related hemorrhage occurred in one patient and resolved spontaneously. Gray-scale sonographic abnormalities were present in 37 studies (73%). The most common abnormality was pancreatic enlargement (n = 23) with a sensitivity and specificity of 5...Continue Reading
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