Computed tomographic colonography vs rectal water‐ contrast transvaginal sonography in diagnosis of rectosigmoid endometriosis: a pilot study
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Computed tomographic colonography and rectal water-contrast transvaginal sonography demonstrated similar accuracy for diagnosing rectosigmoid endometriosis but CTC offered greater precision in distance estimation to the anal verge, despite lower patient tolerance.
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Abstract
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.
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- Non-invasive imaging techniques for diagnosis of pelvic deep endometriosis and endometriosis classification systems: an International Consensus Statement†,‡ 2024
- Advances in Imaging for Assessing Pelvic Endometriosis 2022
- A prospective study comparing rectal water contrast‐transvaginal ultrasonography with sonovaginography for the diagnosis of deep posterior endometriosis 2021
- Magnetic Resonance Rectal Enema Versus Computed Tomographic Colonography in the Diagnosis of Rectosigmoid Endometriosis 2020
- Modern methods for radiological diagnosis of endometriosis 2020
- A Prospective Study Comparing Three-Dimensional Rectal Water Contrast Transvaginal Ultrasonography and Computed Tomographic Colonography in the Diagnosis of Rectosigmoid Endometriosis 2020
- Other imaging techniques: Double-contrast barium enema, endoscopic ultrasonography, multidetector CT enema, and computed tomography colonoscopy 2020
- Ultrasonography for bowel endometriosis 2020
- Fertility in patients with untreated rectosigmoid endometriosis 2020
- Diagnostic performance of computed tomography for bowel endometriosis: A systematic review and meta-analysis 2019
- Transvaginal sonography with <i>vs</i> without bowel preparation in diagnosis of rectosigmoid endometriosis: prospective study 2018
- Does Bowel Preparation Improve the Performance of Rectal Water Contrast Transvaginal Ultrasonography in Diagnosing Rectosigmoid Endometriosis? 2018
- Does Computed Tomography–Based Virtual Colonoscopy Improve the Accuracy of Preoperative Assessment Based on Magnetic Resonance Imaging in Women Managed for Colorectal Endometriosis? 2018
- Rectal water contrast transvaginal ultrasound versus double-contrast barium enema in the diagnosis of bowel endometriosis 2017
- Surgery versus hormonal therapy for deep endometriosis: is it a choice of the physician? 2016
- Deep pelvic endometriosis: a radiologist’s guide to key imaging features with clinical and histopathologic review 2016
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