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

Table 6

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

Project	Sensitivity	Accuracy	Specificity
Ultrasonic examination	66.67% (30/45)	79.69% (102/128)	93.98% (78/83)
MRI	71.11% (32/45)	85.16% (109/128)	96.39% (80/83)
Ultrasound+MRI	100% (45/45)	100.00% (128/128)	100.00% (83/83)
	17.934	27.337	4.908
	<0.01	<0.01	>0.05