1. ERCP with retrieval balloon-assisted enterography using traditional duodenoscope in post-GI surgery patients 
Ming Zhuang, MD, Wenjie Zhang, MD, Jun Gu, MD, Wei Gong, MD, Xuefeng Wang, MD 
Gastrointestinal Endoscopy 
Volume 77, Issue 2, Pages (February 2013)
DOI: /j.gie
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

2. Fig. 1
The “upper tunnel” was the exact entrance of the right afferent loop in which the duodenoscope should be extending along the greater curvature until we saw the gastrojejunal anastomosis.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

3. Fig. 2
Exploring the afferent limb of postpancreaticoduodenectomy patient by retrieval balloon-assisted enterography using conventional duodenoscope.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

4. Fig. 3
Jejunojejuno anastomosis: the retrieval balloon catheter can be stationed in the afferent loop (the middle cave in this view) as a guide to avoid the duodenoscope.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions