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. 2021 Feb;24(2):122-130.
doi: 10.1080/10255842.2020.1813281. Epub 2020 Sep 4.

Statistical shape modeling of the pelvic floor to evaluate women with obstructed defecation symptoms

Megan R Routzong  1 , Ghazaleh Rostaminia  2 , Shaniel T Bowen  1 , Roger P Goldberg  2 , Steven D Abramowitch  1
Affiliations

Statistical shape modeling of the pelvic floor to evaluate women with obstructed defecation symptoms

Megan R Routzong et al. Comput Methods Biomech Biomed Engin. 2021 Feb.

Abstract

Obstructed defecation (OD) is common and may be related to compromised pelvic floor integrity. Magnetic resonance (MR) defecography and statistical shape modeling were used to define pelvic floor shape variations, hypothesizing that State (rest vs peak evacuation) and Group (control vs case) would significantly influence shape. 16 women underwent MR defecography (9 cases vs 7 controls). Midsagittal, 2D pelvic floors were segmented and aligned by corresponding points. Principal component scores were compared using a Two-Way Mixed MANOVA. Three modes described differences between State (p < 0.001) and Group (p = 0.023). The pelvic floor shape differed significantly between women with and without OD and during evacuation.

Keywords: MR defecography; obstructed defecation symptoms; pelvic floor; statistical shape modeling.

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