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Table 3 Comparison of pelvic floor muscle 3D characters between the POP patients and the normal volunteers

From: Study of female pelvic floor muscle in overactive bladder based on MRI 3D reconstruction

Levator ani muscle morphological characteristics

POP group (n = 22)

Normal group (n = 9)

P value

Length of the anterior part of LAM hiatus (mm)

42.9 ± 7.3

39.0 ± 5.5

0.166

Length of middle part of LAM hiatus (mm)

43.6 ± 7.1

36.7 ± 4.3

0.010

Length of posterior part of LAM hiatus (mm)

27.0 ± 3.9

21.2 ± 4.6

0.001

Volume of LAM (mm3)

34,130.6 ± 7968.3

27,294.4 ± 4461.4

0.023

  1. OAB, overactive bladder; POP, pelvic organ prolapse; LAM, levator ani muscle