Ultrasound Diagnosis of Pelvic Endometriosis

Antonio Maiorana, Domenico Incandela, Laura Giambanco, Walter Alio, L. Alio
In: Journal of Endometriosis · 2011 · vol. 3(2) , pp. 105–119 · doi:10.5301/je.2011.8537 · W45903665
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This review of 85 studies found ultrasound, particularly transvaginal sonography, is the primary imaging technique for diagnosing pelvic endometriosis, with rectal endoscopic sonography useful for intestinal involvement and MRI for deep infiltrating endometriosis.

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Abstract

Purpose Endometriosis remains a challenging condition for clinicians, research scientists, and patients alike. Routine clinical examination is insufficient to diagnose and evaluate the extent of pelvic endometriosis which can be assessed by means of imaging techniques, including transvaginal sonography (TVS), transrectal sonography (TRS), rectal endoscopic sonography (RES), and magnetic resonance imaging (MRI). Our purpose was to analyze the different imaging techniques and their efficacy for the ultrasound diagnosis of pelvic endometriosis. Materials and methods This review examined 85 studies on the ultrasound diagnosis of endometriosis published between 2005 and 2010. The structure of the review is based first on the anatomical location of the endometriosis lesion, and then on the study of the techniques used, including transvaginal sonography, transrectal sonography, rectal endoscopic sonography, and MRI. Results TVS is the first-line imaging technique for diagnosing pelvic endometriosis. Many studies have demonstrated that sensitivities and specificities of TVS for diagnosing endometriomas range from 75% to 91% and 88% to 99%, respectively, while for RES the percentages are 88% and 90%, respectively, for the diagnosis of intestinal endometriosis. TVS and RES can correctly diagnose posterior deep infiltrating endometriosis (DIE) with an accuracy of 86.4% and 74.1%, respectively. Conclusions The analysis of these results show that ultrasound is the first-line diagnostic technique for the diagnosis of pelvic endometriosis. RES can help to identify the presence and the degree of wall infiltration of bowel sites. However, in patients with a consistent clinical suspicion of deep endometriosis, MRI is a good “all in one” examination to diagnose and define the exact extent of DIE.

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endometriosisdie_deep_infiltrating

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