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International Urogynecology Journal

Erschienen in:

29.09.2022 | Original Article

Levator ani muscle volume and architecture in normal vs. muscle damage patients using 3D endovaginal ultrasound: a pilot study

verfasst von: Zara Asif, Roni Tomashev, Veronica Peterkin, Qi Wei, Jonia Alshiek, Baumfeld Yael, S. Abbas Shobeiri

Erschienen in: International Urogynecology Journal | Ausgabe 2/2023

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Abstract

Introduction and hypothesis

This study aimed to compare the difference in levator ani muscle (LAM) volumes between 'normal' and those with sonographically visualized LAM defects. We hypothesized that the 'muscle damage' group would have a significantly lower muscle volume.

Methods

The study included patients who had undergone a 3D endovaginal ultrasound. The normal (NM) and damage (DM) muscle groups’ architectural changes were evaluated based on anterior-posterior (AP), left-right (LR) diameter, and minimal levator hiatus (MLH) area. The puboanalis-puboperinealis (PA), puborectalis (PR), and pubococcygeus-iliococcygeus (PC) were manually segmented using 2.5 vs. 1.0 mm to find the optimal sequence and to compare the volumes between NM and DM groups. POPQs were compared between the NM and DM groups.

Results

The 1.0-mm segmentation volumes created superior volume analysis. Comparing NM to the DM group showed no significant difference in LAM volume. Respectively, the mean total LAM volumes were 17.27 cm³ (SD = 3.97) and 17.04 cm³ (SD = 4.32), p = 0.79. The mean MLH measurements for both groups respectively were 10.06 cm² (SD = 2.93) and 12.18 cm² (SD = 2.93), indicating a significant difference (p = 0.01). POPQ analysis demonstrated statistically significant differences at Ba and Bp parameters suggesting that the DM group had worse prolapse (p = 0.05, 0.01, respectively).

Conclusions

While LAM volumes are similar, there is a significant difference in the physical architecture of the LAM and the POPQ parameters in muscle-damaged patients compared to the normal group.

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Titel: Levator ani muscle volume and architecture in normal vs. muscle damage patients using 3D endovaginal ultrasound: a pilot study
verfasst von: Zara Asif
Roni Tomashev
Veronica Peterkin
Qi Wei
Jonia Alshiek
Baumfeld Yael
S. Abbas Shobeiri
Publikationsdatum: 29.09.2022
Verlag: Springer International Publishing
Erschienen in: International Urogynecology Journal / Ausgabe 2/2023
Print ISSN: 0937-3462
Elektronische ISSN: 1433-3023
DOI: https://doi.org/10.1007/s00192-022-05366-4

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Levator ani muscle volume and architecture in normal vs. muscle damage patients using 3D endovaginal ultrasound: a pilot study