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Table 2 3D-EUS and 3D-HRAM findings in 30 control patients

From: 3D high-resolution anorectal manometry in patients with perianal fistulas: comparison with 3D-anal ultrasound

Patient groups Defects on EUS No defects on EUS
Number of patients (Male/Female) 10 (5/5) 20 (10/10)
3D-EUS
Defects
 IAS 5 (5/0) -
 EAS 4 (0/4a) -
 IAS + EAS 1 (0/1a) -
3D-HRAM
 MRP (mmHg) 65 75
 MSP (mmHg) 93 125
 MRP defect (mmHg) 27
 MRP non-defect (mmHg) 68
 MSP defect (mmHg) 52
 MSP non-defect (mmHg) 100
 Sphincter length (cm) 3.1 3.2
 Groove (n) 6 (3/3)
Agreement 3D-EUS and 3D-HRAM
 Good 6 (3/3a)
 Moderate 4 (2/2a)
 No 0
  1. aWomen with a traumatic delivery. IAS internal anal sphincter, EAS external anal sphincter, MRP mean resting pressure, MSP mean squeeze pressure