OC15.06: Diagnosis of uterosacral ligament endometriosis by transvaginal ultrasonography

To conclude the ultrasound characteristics of uterosacral ligaments infiltrated by endometriosis and to determine the diagnostic accuracy of transvaginal sonography in uterosacral ligaments endometriosis. Women assessed by vaginal examination suggestive of DIE were invited to join the study. Analyses were made for those who have been confirmed as uterosacral ligament involvement by surgery histological examination. The echo and morphological changes of uterosacral ligaments were observed carefully and recorded for classification in cases of involved. The sensitivity, specificity, positive predictive values (PPV), negative predictive values (NPV) and coincidence rate of TVS in diagnosis uterosacral ligaments endometriosis were calculated compared with surgery and histology findings. 118 women were confirmed as DIE by laparoscopic surgery and histological examination and of which 85 cases Involved uterosacral ligaments and 81 were diagnosed correctly by TVS preoperative. The ultrasound characteristics of uterosacral ligaments in DIE can be describe as four categories:1. thickness and stiffness;2.Local nodule;3.Irregular stripe;4.mixed.The Sensitivity, specificity, PPV, negative NPV and Coincidence rate of TVS in diagnosis uterosacral ligaments endometriosis were 96%, 88%, 95%, 91% and 94% respectively. Transvaginal ultrasound can observe uterosacral ligament endometriosis lesions clearly and which can be classified into 4 types according to morphological changes. Transvaginal ultrasonography has great application value in the diagnosis of sacral ligament endometriosis. Supporting information can be found in the online version of this abstract Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.