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Table 3 Comparative study between endoanal ultrasound and MRI in detection of the internal opening

From: Role of endoanal ultrasound in the assessment of perianal fistula in correlation with MRI fistulography

 

Internal opening (MRI)

Cohen’s kappa coefficient

P value

Yes

No

Count

%

Count

%

Internal opening (endoanal ultrasound)

 Yes

96

100.0

16

66.7

0.444

< 0.001

 No

0

0.0

8

33.3