Analysis of 777 cases with obstruction of the ureter or extrahepatic bile duct by ultrasonography after normal saline retention enema

The Ultrasound Journal

Table 1 Results of the ultrasonographic examination after normal saline retention enema in group A

	Total patients	Failing in enema	Succeeding in enema	Missed diagnosis	Confirmed diagnosis
					Calculus	Stricture
The number of patients	603	13	590	34	533	23
Percentage (%)	-	2.16	97.84	5.76	94.24
		(13/603)	(590/603)	(34/590)	(556/590)