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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 measurementsPatientsControl groupP value
Mean ± SDMean ± SD
Levator Hiatus
 AP Diameter (cm)5.8 ± 0.95.3 ± 0.40.2
 Tr Diameter (cm)3.9 ± 0.43.6 ± 0.40.16
 Area (cm2)16.6 ± 1.114.9 ± 0.50.3
IS Thickness (mm)1.9 ± 0.22.6 ± 0.5< 0.001
ES Thickness (mm)2.8 ± 0.22.3 ± 0.5< 0.001
PRS Thickness (mm)2.9 ± 0.633.3 ± 0.40.3