The effectiveness of uterine parametrics measured by three-dimensional transvaginal sonography in the diagnosis of uterine cavity distortions.

Abstract

BackgroundTo analyze the application values of quantitative parametrics measured by three-dimensional transvaginal sonography (3D-TVS) in the diagnosis of uterine cavity distortions.MethodsA retrospective analysis was performed on consecutive 113 patients with septate uteruses, as diagnosed consistently by both 3D-TVS and hysteroscopic surgery, between Jan 2016 and Jan 2018. The intrauterine quantitative parametrics were compared between an infertility group and a miscarriage group. Receiver operating characteristic (ROC) curve analysis and evaluation indicators of diagnostic tests were plotted to analyze the relationships between parametrics and uterine cavity distortions.ResultsThere were no significant differences in septum width, septum length, uterine angle, remaining uterine cavity length, and distortion rate between the infertility and miscarriage groups (P>0.05). The distortion rate was positively correlated with septum length, but showed a negative correlation with uterine angle and remaining uterine cavity length (all P<0.05). The area under the curve (AUC) of septum length for predicting a distortion rate higher than 50% was 0.969; with a cutoff value of 2.15 cm, and a diagnostic accuracy of 97.14%, sensitivity was 81.80% and specificity was 98.90%, respectively. Patients with lower septum length coupled with a higher remaining uterine cavity length had a lower risk of uterine cavity distortion.ConclusionsSeptum length was shown to have the most important effect on uterine cavity distortion of all the uterine parametrics measured by 3D-TVS. Patients with septum lengths higher than 2.15 cm indicated a distortion rate of more than 50%, and tend to experience adverse pregnancy outcomes.