Rates of detection of biliary obstruction, prediction of resectability, and T-stage by endoscopic ultrasound (EUS) and intraductal ultrasound (IDUS)

	Determine cause biliary obstruction	Correct prediction of resectability	Correct T-staging
EUS	80 percent	76 percent	54 percent
IDUS	98 percent	82 percent	78 percent
p value	<0.001	<0.002	<0.001

Data from: Menzel J, Poremba C, Dietl KH, Domschke W. Scand J Gastroenterol 2000; 35:77.

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