Combined With MRI Based 3D Visualization Technique And Reverse Analysis Evaluate Female Pelvic Floor Dysfunction

Objective: Discuss the consistency of the result of magnetic resonance imaging staging and POP-Q classification. To explore the method and profound of reconstructing 3D anatomy of female pelvic floor. Using 3D visualization technology and reverse analysis method analysis the anatomical defect type of anterior vaginal wall prolapse.Methods: Selected 60 patients with pelvic organ prolapse, from February 2014 to February 2016, examined the pelvic MRI and evaluated the degree, the result was compared between POP-Q evaluation system and "HMO" staging system. Imported the MRI data into the 3D-Slicer software for reconstruction. Assessment the degree of prolapse using "HMO" staging system on the 3D model. 10 anterior vaginal prolapse patients and 5 healthy volunteers were selected between Aug. 2014 to Dec. 2015. Pelvic floor MRI scan was performed to reconstruct the pelvic floor 3D model. The models were imported into the Geomagic Studio software for analysis morphology and drop distance of posterior bladder wall.Result: The MRI staging and clinical POP-Q evaluation system was good(in the anterior ?=0.4187, in the middle part ?=0.5115, in the posterior part ?=0.6097). 3D model to evaluate the severity of prolapse can increase the consistency between "HMO" staging system and "POP-Q" evaluation system(in the anterior ?=0.4507, in the middle part ?=0.5271, in the posterior part ?=0.6441). All of the points of the control group is normal. There are 5 patients with lateral defect, 3 patients with central defect and lateral defect, 2 patients with central defects.Conclusions: The "HMO" staging system of pelvic MRI and 3D model can be used to assess the degree of pelvic floor dysfunction. The morphology and position of the bladder wall may inferred the type of defects.