Abstract
This study offered the opportunity to compare CT/MR imaging findings with surgical and histological findings in resected specimen. MR images of the pelvis were retrospectively evaluated in the 27 patients.
To be included in the analysis, a CT and/or MRI must have been performed within the three month period before surgery .Since it was difficult on retrospective review of radiology reports to determine whether recurrent disease was simply adherent to or invading adjacent organs and structures, both were considered to be positive involvement in this analysis
MR images were obtained on a Siemens Somatron Sensation 16. CT images were obtained on a Philips Achieva 1,5T XR MRI System.
We compared surgical findings and pathology reports to determine the accuracy of MR findings (to help determine the type of exenteration indicated). Accuracy, sensitivity, specificity, positive predictive value, and negative predictive value were calculated. Cohen's kappa coefficient was used to measure the agreement between anatomopathology and CT / MR imaging (<0 No agreement, 0-0.2 Slight agreement, 0.2-0.4 Fair agreement, 0.4-0.6 Moderate agreement, 0.6-0.8 Substantial agreement, 0.8-1 Almost perfect agreement).
