Gastrointestinal Radiology > Procedures > Defecography > Defecography (8)


Defecography (cont.)

Normal Defecography Measurements And Calculations

Anorectal Angle (°)
  Rest Squeeze Strain
Men 96 +/- 17 (64-125) 80 +/- 16 (45-116) 98 +/- 19 (67-128)
Female 95 +/- 16 (70-134) 71 +/- 12 (54-95) 103 +/- 15 (75-128)

 

Anorectal Junction Position Relative to Ischial Tuberosities (mm)
  Rest Squeeze Defecate
Men 16 +/- 9 (0-31) 28 +/- 9 (9-41) -4 +/- 9 (-22 to 31)
Female 4 +/- 13 (-32 to 21) 14 +/- 12 (-20 to 28) -16 +/- 15 (-48 to 12)

 

Perineal Floor Movement from Resting Position (mm)
  Squeeze Defecate
Men 13 +/- 7 19 +/- 10 (2-39)
Female 10 +/- 7 20 +/- 15 (0-54)