Endosonography is currently the gold standard for the local staging of rectal carcinoma, but its accuracy varies from 62% to 91%. This study aimed to determine the accuracy of endosonography, to evaluate the interobserver variability, and to compare the performance of the 7.5-MHz and the 10-MHz ultrasound scanners.
Department Surgery, Chirurgische Klinik und Poliklinik, Klinikum rechts der lsar, Technische Universität München, Ismaningerstrasse 22, 81675, München, Germany. werner_kauer@yahoo.de
