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Table 4 Comparative study between endoanal ultrasound and MRI in detection of secondary extensions

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

  Secondary extensions (MRI) Cohen’s kappa coefficient P value
Yes No
Count % Count %
Secondary extension (endoanal ultrasound)
Yes 4 50.0 0 0.0 0.651 < 0.001
 No 4 50.0 112 100.0