Endorectal ultrasound accuracy in the diagnosis of rectal endometriosis infiltration depth

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This study evaluated the accuracy of endorectal ultrasound in determining the depth of rectal endometriosis infiltration.

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Abstract

ObjectiveTo evaluate the accuracy of endorectal ultrasound examination to ascertain the deepest rectal layer involved in rectal endometriosis.DesignRetrospective study.SettingDepartment of obstetrics and gynecology at a university hospital in France.Patient(s)Women presenting with rectal endometriosis who had undergone rectal resection during a 22-month period.Intervention(s)Endorectal ultrasonography.Main outcome measure(s)The predicted rectal infiltration depth by using endorectal examination was compared with histological findings. The level of agreement was evaluated by using the coefficients of concordance kappa and weighted kappa.Result(s)Sixteen women were included in the study. Rectal resection was segmental in 14 cases and was limited in 2 cases. The agreement between 2 examinations was considered good in 9 cases (56%). Endorectal ultrasound overestimated the depth of infiltration in 5 cases and underestimated it in 2 cases. The coefficients of concordance kappa (95% confidence interval) and weighted kappa (95% confidence interval) were, respectively, 0.17 (0-0.34) and 0.22 (0.04-0.4), corresponding to poor concordance between the endorectal ultrasonography and histological examination.Conclusion(s)Accuracy in the prediction of rectal-layer involvement in endorectal ultrasonography appears to be limited. This information should not be considered sufficient when selecting the type of rectal-resection procedure.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Rectal Diseases Rectum Ultrasonography Adult Endometriosis Female Humans Rectal Diseases Rectum Reproducibility of Results Retrospective Studies Sensitivity and Specificity Ultrasonography

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europepmc
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License: CC0 · commercial use OK