E-Posters-10239

10239_Xie

Pdf Summary

This study compared nine measurement systems for posterior vaginal wall prolapse on MRI to determine their ability to identify and assess rectocele size. The researchers used maximal Valsalva dynamic MRI scans from 52 cases with posterior predominant vaginal prolapse and 64 demographic similar asymptomatic controls. They measured various reference lines and the exposed vaginal length and compared them to expert assessment.<br /><br />The two best performing measurement systems were the exposed vaginal length and the internal perineal line, with area under the curve (AUC) values of 0.95 and 0.92, respectively. These systems also showed the best agreement with expert opinion of prolapse size. The exposed vaginal length performed better than existing measurements in determining both the presence and the size of the posterior wall prolapse.<br /><br />The study established a summary of the performance of existing evaluation systems for posterior vaginal wall prolapse and determined evidence-based cutoff values. The exposed vaginal length was found to be the most effective measurement, with a cut-off value of 2.9 cm. The internal perineal line also showed good ability to determine the presence and size of the prolapse.<br /><br />Overall, this study highlights the need for clear criteria for the diagnosis and assessment of rectocele and provides valuable insights into the performance of different measurement systems on MRI. The exposed vaginal length and internal perineal line were identified as the most effective measurements for detecting and assessing posterior vaginal wall prolapse. These findings could contribute to improved diagnosis and treatment of this condition in clinical practice.

Keywords

measurement systems

posterior vaginal wall prolapse

MRI

rectocele size

exposed vaginal length

internal perineal line

area under the curve

expert opinion

existing measurements

diagnosis and assessment