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Table 5 Measured parameters in the patients and the control group (mean ± SD) during squeezing

From: Role of three-dimensional ultrasound in females with obstructed defecation (in comparison with defecography)

3D Ultrasonography measurements

Patients

Control group

P value

Mean ± SD

Mean ± SD

Levator Hiatus

 AP Diameter (cm)

5.8 ± 0.9

5.3 ± 0.4

0.2

 Tr Diameter (cm)

3.9 ± 0.4

3.6 ± 0.4

0.16

 Area (cm2)

16.6 ± 1.1

14.9 ± 0.5

0.3

IS Thickness (mm)

1.9 ± 0.2

2.6 ± 0.5

< 0.001

ES Thickness (mm)

2.8 ± 0.2

2.3 ± 0.5

< 0.001

PRS Thickness (mm)

2.9 ± 0.63

3.3 ± 0.4

0.3