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

Table 4

Comparison of three methods in the diagnosis of transsphincter AF (/%).

Project	Sensitivity	Accuracy	Specificity
Ultrasonic examination	67.92% (36/53)	82.03% (105/128)	92.00% (69/75)
MRI	64.15% (34/53)	83.59% (107/128)	97.33% (73/75)
Ultrasound+MRI	96.23% (51/53)	93.75% (120/128)	92.00% (69/75)
	17.913	2.386	2.437
	<0.01	>0.05	>0.05