1. Submucosal saline solution injection combined with endosonography for distinguishing between stages T1a and T1b of early esophageal cancer 
Jian-jun Li, MD, PhD, Hong-bo Shan, MD, PhD, Guo-liang Xu, MD, Long-jun He, MD 
Gastrointestinal Endoscopy 
Volume 77, Issue 1, Pages (January 2013)
DOI: /j.gie
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

2. Figure 1
Stage T1b of early esophageal cancer visualized by regular EUS (the schematic diagram on the right). The lesion and infiltration depth in the submucosa were difficult to distinguish from the mucosa.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions

3. Figure 2
Submucosal saline solution injection (SSI) enhanced EUS of stage T1b of early esophageal cancer (EEC). Stage T1b EEC of visualized in the SSI + EUS mode (the schematic diagram on the right). After SSI, the boundary between the mucosa and submucosa became clear. The lesion and infiltration depth in the mucosa and submucosa were easily distinguished.
Gastrointestinal Endoscopy  , DOI: ( /j.gie )
Copyright © 2013 American Society for Gastrointestinal Endoscopy Terms and Conditions