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Efficiency of MR imaging to orientate surgical treatment of posterior deep pelvic endometriosis

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Abstract

Objective

The purpose of this retrospective study was to evaluate the accuracy of MRI using pelvic-phased-array and endocavitary coils in detecting intestinal wall invasion by an endometriotic nodule.

Materials and methods

Forty-seven patients (32.1 ± 4.2 years) who were planned for a surgical cure of deep endometriosis underwent MRI with conventional sequences using both coils. A thin bright layer on T2-w with enhancement on post-Gd T1-w defined our MR pattern for muscular layer involvement. MR results were correlated with surgical and pathological findings of the removed nodule.

Results

MR results for Group 1 (both coils) achieved a sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 100–63%, 96–92%, 90–70%, 100–85%, and 97–83% for endovaginal coil and phased-array coil, respectively. Group 2 (phased-array coil) had a sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 73%, 93%, 84%, 88%, and 87% for this coil, respectively.

Conclusion

Combined pelvic-phased-array and endovaginal coils are better than phased array alone in the detection of intestinal wall invasion. Easy to perform, it has to be considered as a preoperative staging for deep posterior endometriosis to orientate the surgical management.

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Correspondence to Catherine Roy.

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Roy, C., Balzan, C., Thoma, V. et al. Efficiency of MR imaging to orientate surgical treatment of posterior deep pelvic endometriosis. Abdom Imaging 34, 251–259 (2009). https://doi.org/10.1007/s00261-008-9367-9

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  • DOI: https://doi.org/10.1007/s00261-008-9367-9

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