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Computed tomographic colonography vs rectal water‐ contrast transvaginal sonography in diagnosis of rectosigmoid endometriosis: a pilot study
Author(s) -
Ferrero S.,
Biscaldi E.,
Vellone V. G.,
Venturini P. L.,
Leone Roberti Maggiore U.
Publication year - 2017
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.15905
Subject(s) - medicine , endometriosis , radiology , anal verge , computed tomographic , gynecology , computed tomography , colorectal cancer , cancer
Objectives To compare the performance of computed tomographic colonography ( CTC ) and rectal water‐contrast transvaginal sonography ( RWC‐TVS ) in the diagnosis of rectosigmoid endometriosis, and compare precision in estimating the length of the rectosigmoid nodules and the distance between the nodules and the anal verge. Methods This prospective study included 70 patients of reproductive age with clinical suspicion of rectosigmoid endometriosis. Patients underwent RWC‐TVS and CTC before laparoscopic excision of endometriotic nodules. The findings of RWC‐TVS and CTC were compared with surgical and histological results. Results Of the 70 patients included in the study, 40 (57.1%) had rectosigmoid endometriosis. CTC and RWC‐TVS had similar accuracy in the diagnosis of rectosigmoid endometriosis ( P = 0.508) and similar precision in estimating the length of the endometriotic nodules ( P = 0.077). CTC was more precise than RWC‐TVS in estimating the distance between the rectosigmoid nodule and the anal verge ( P < 0.001). The intensity of pain experienced during CTC was higher than that perceived during RWC‐TVS ( P < 0.001); however, intestinal distension for CTC was well‐tolerated in all patients without significant adverse effects. Conclusions RWC‐TVS and CTC have similar accuracy in the diagnosis of rectosigmoid endometriosis and similar precision in estimating the size of the nodules; however, CTC is more precise than RWC‐TVS in estimating the distance between the nodules and the anal verge, yet patients tolerate RWC‐TVS better than CTC . Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.