Comparison of transvaginal sonography and computed tomography-colonography with contrast media and urographic phase for diagnosing deep infiltrating endometriosis of the posterior compartment of the pelvis: a pilot study

Purpose To compare the diagnostic accuracy of transvaginal sonography (TVS) and computed tomography–colonography with contrast media and urographic phase (CTCU) in the preoperative detection of deep infiltrating endometriosis (DIE).

Forty-seven patients with clinical suspicion of DIE underwent preoperative TVS and CTCU. Imaging data were compared with histopathologic analysis. Sensitivity, specificity, positive and negative predictive values and test accuracies of the two modalities were calculated.

For diagnosing intestinal DIE, TVS and CTCU had a sensitivity of 98 and 71%, specificity of 33 and 50%, positive predictive value of 91 and 91%, negative predictive value of 67 and 20%, accuracy of 89 and 68%, respectively. For diagnosing ureteral DIE, TVS and CTCU had a sensitivity of 10 and 60%, specificity of 94.8 and 70.2% on the right; sensitivity of 28.5 and 57.1%, specificity of 96.3 and 76.9% on the left, respectively.

TVS should be regarded as an accurate, radiation-free first-line diagnostic modality for patients with suspicion of posterior endometriosis. CTCU should be regarded as a complementary imaging modality, particularly for sigmoid or ureteral endometriosis. Similar content being viewed by others

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Author information Authors and Affiliations Corresponding author Ethics declarations Conflict of interest The authors declare that they have no conflict of interest. About this article Cite this article Zannoni, L., Del Forno, S., Coppola, F. et al. Comparison of transvaginal sonography and computed tomography–colonography with contrast media and urographic phase for diagnosing deep infiltrating endometriosis of the posterior compartment of the pelvis: a pilot study. Jpn J Radiol 35, 546–554 (2017). https://doi.org/10.1007/s11604-017-0665-4 Received: Accepted: Published: Issue date: DOI: https://doi.org/10.1007/s11604-017-0665-4