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Table 1 Results of 3D-EAUS findings in the identification of the primary fistula tract

From: Value of three-dimensional endoanal ultrasound scan (3D-EAUS) in preoperative assessment of fistula-in-ano

3D-EAUS Surgical findings
Transphincteric (n = 62) Intersphincteric (n = 18) Suprasphincteric (n = 3) Superficial (n = 3) Sinus tract (n = 1)
Transphincteric 54 (87.1%) 8 (44.4%) 2 (66.7%) 1 (33.3%) 1 (100%)
Intersphincteric 4 (6.5%) 7 (38.9%) 1 (33.3%) 1 (33.3%) 0
Extrasphincteric 1 (1.6%) 0 0 0 0
No tract 3 (4.8%) 3 (16.7%) 0 1 (33.3%) 0