Research Article

3D-EAUS and MRI in the Activity of Anal Fistulas in Crohn’s Disease

Table 1

Type of perianal fistulas, according to Parks classification, observed with 3D-EAUS and MRI.

Location3D-EAUS
Number of patients (%)
MRI
Number of patients (%)
HypothesisMcNemar’s exact test ( value)

Intersphincteric23 (45.10)3 (5.88)MRI < 3D-EAUS10−6
Transsphincteric12 (23.53)10 (19.61)MRI < 3D-EAUS0.344
Suprasphincteric4 (7.84)11 (21.57)MRI > 3D-EAUS0.0327
Extrasphincteric 3 (5.88)21 (41.18)MRI > 3D-EAUS4 ⊕ 10−6
Absence of pathology9 (17.65)6 (11.76)MRI < 3D-EAUS0.187
Total51 (100)51 (100)MRI > 3D-EAUS