1. Endoscopic Ultrasound: A Meta-analysis of Test Performance in Suspected Biliary Obstruction 
Donald Garrow, Scott Miller, Debajyoti Sinha, Jason Conway, Brenda J. Hoffman, Robert H. Hawes, Joseph Romagnuolo 
Clinical Gastroenterology and Hepatology 
Volume 5, Issue 5, Pages e1 (May 2007)
DOI: /j.cgh
Copyright © 2007 AGA Institute Terms and Conditions

2. Figure 1
Electronic radial EUS (7.5 MHz) of the apex of the duodenal bulb showing a nondilated common bile duct (CBD), the pancreatic duct (pd), and the portal vein (PV) alongside one another in a “stack sign” view with a hyperechoic (bright) 2.5 mm CBD stone (calipers) with hypoechoic (dark) shadowing (thick arrow), along with downstream wedge-shaped shadowing from multiple other stones (small arrows). MRCP before EUS in this patient suspected an intraductal tissue mass. Stones were removed at ERCP.
Clinical Gastroenterology and Hepatology 2007 5, e1DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

3. Figure 2 Flowchart summarizing the study exclusion process.
Clinical Gastroenterology and Hepatology 2007 5, e1DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

4. Figure 3
Receiver operating characteristic curves for EUS targeted at overall biliary construction, bile duct stones, and malignancy.
Clinical Gastroenterology and Hepatology 2007 5, e1DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

5. Figure 4
Influence of a positive or negative EUS result on the pretest probability of disease for various indications of EUS.
Clinical Gastroenterology and Hepatology 2007 5, e1DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions