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BioMed Research International
Volume 2017 (2017), Article ID 5981217, 7 pages
Research Article

Magnetic Resonance Colonography May Predict the Need for Bowel Resection in Colorectal Endometriosis

1Interdisciplinary Department of Medicine, Section of Radiology, University of Bari Medical School, Bari, Italy
2Department of Radiology, IRCCS “De Bellis” Hospital, Castellana Grotte, Italy
3Department of General and Specialist Surgical Sciences, Section of Obstetrics and Gynecology, University of Bari Medical School, Bari, Italy
4Department of Obstetrics and Gynecology, Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy

Correspondence should be addressed to Arnaldo Scardapane

Received 2 June 2017; Revised 26 July 2017; Accepted 2 August 2017; Published 25 September 2017

Academic Editor: Fabio Minutoli

Copyright © 2017 Arnaldo Scardapane et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. To define if MRI findings in patients with deep pelvic endometriosis (DPE) may be predictive for the need of bowel resection. Material and Methods. A retrospective survey of 196 pelvic MRIs of women who received laparoscopic procedures for DPE was carried out. A pelvic MRI was performed in all patients: it consisted in T2w-TSE sequences in axial, sagittal, and coronal planes and T1w and THRIVE sequences in the axial plane; the exam was completed by MR-Colonography. Intestinal lesions were measured in short and long axis and the degree of stenosis was established. A multivariate logistic regression was used to identify the predictors of intestinal resection. Results. 57/196 patients received an intestinal resection. Multivariate logistic regression demonstrated a predictive value of short axis (Odds-Ratio = 2.29, ) and stenosis (Odds-Ratio = 1.20, ). ROC analysis showed that a cut-off value of 11 mm for the short axis and 30% for the stenosis may correctly classify, respectively, 96,94% (sensitivity 92,9% and specificity 98,56%) and 97,96% (sensitivity 94,74% and specificity 99,3%) of the cases. Conclusion. The presence of an endometriotic rectal nodule > 11 mm in short axis causing a stenosis > 30% in pelvic MRI reliably predicts the need of a rectal resection.