[Retracted] The Value of Transrectal Ultrasound in the Preoperative Diagnosis of Complex Anal Fistula (CAF): Based on a Retrospective Cohort Study

Table 7

Detection of superior sphincter AF by three methods.

Surgical results	Ultrasonic examination		MRI check		Ultrasound+MRI		Total
	+	-	+	-	+	-
+	15	15	19	11	26	4	30
-	9	89	2	96	9	89	98
Total	24	104	21	107	35	93	128