This study was undertaken to develop and test a 3-di-mensional(3D)color thickness mapping technique o nlevator ani imaged with magnetic resonance imaging(MRI ).Supine MRI datasets from 30women were studied:10asymptoma...This study was undertaken to develop and test a 3-di-mensional(3D)color thickness mapping technique o nlevator ani imaged with magnetic resonance imaging(MRI ).Supine MRI datasets from 30women were studied:10asymptomatic,10with urodynamic stress incontinence,and 10with pelvic organ prolapse.Levators were manually outlined,and thickness mapping applied.Three -dimen-sionalmodelswere colored topograp hically,reflecting levator thickness.Thickness and occurrences of absent levator substance(gaps)were compared across the 3groups,us-ing nonparametric statistical tests.Color thickness mapping was successful in all subjects.There were statistically sig-nificant differences in thickness a nd gap percentages among the 3groups of women,with thicker,b ulkier levators in asymptomatic women,compared with w omen with prolapse or urodynamic stress incontinence.Color thickness map-ping is feasible.It may be used to com pare levators in symptomatic and asymptomatic women,to study relation-ships between levator thickness and pelvic floor dysfunc-tion.This technique can be used in la rger studies for hy-pothesis testing.展开更多
文摘This study was undertaken to develop and test a 3-di-mensional(3D)color thickness mapping technique o nlevator ani imaged with magnetic resonance imaging(MRI ).Supine MRI datasets from 30women were studied:10asymptomatic,10with urodynamic stress incontinence,and 10with pelvic organ prolapse.Levators were manually outlined,and thickness mapping applied.Three -dimen-sionalmodelswere colored topograp hically,reflecting levator thickness.Thickness and occurrences of absent levator substance(gaps)were compared across the 3groups,us-ing nonparametric statistical tests.Color thickness mapping was successful in all subjects.There were statistically sig-nificant differences in thickness a nd gap percentages among the 3groups of women,with thicker,b ulkier levators in asymptomatic women,compared with w omen with prolapse or urodynamic stress incontinence.Color thickness map-ping is feasible.It may be used to com pare levators in symptomatic and asymptomatic women,to study relation-ships between levator thickness and pelvic floor dysfunc-tion.This technique can be used in la rger studies for hy-pothesis testing.
