1. Molecular endoscopy for targeted imaging in the digestive tract
Jeong Hoon Lee, MD, Prof Thomas D Wang, PhD 
The Lancet Gastroenterology & Hepatology 
Volume 1, Issue 2, Pages (October 2016)
DOI: /S (16)
Copyright © 2016 Elsevier Ltd Terms and Conditions

2. Figure 1 Optical properties of tissue
Haemoglobin (Hb) and oxyhaemoglobin (HbO2) absorption dominates the visible spectrum, used by white light endoscopy (WLE), but has minimal effect in the near-infrared (NIR) range. AFI=autofluorescence imaging. NBI=narrow-band imaging. OCT=optimal coherence tomography. OFDI=optimal frequency domain imaging. FITC=fluorescein isothiocyanate.
The Lancet Gastroenterology & Hepatology 2016 1, DOI: ( /S (16) )
Copyright © 2016 Elsevier Ltd Terms and Conditions

3. Figure 2 Detection of sessile serrated adenoma in proximal colon
Image shows non-polypoid adenoma (arrow) on white light endoscopy (A), fluorescence (B), reflectance (C), and ratio (D) image. Ratio image shows lesion margins (red). Reproduced from Joshi et al (2016),40 by permission of Elsevier.
The Lancet Gastroenterology & Hepatology 2016 1, DOI: ( /S (16) )
Copyright © 2016 Elsevier Ltd Terms and Conditions

4. Figure 3 Detection of tubular adenomas in colon using c-Met peptide
Grossly visible polyp (red arrow) and non-polypoid adenoma (blue arrow) seen on white light endoscopy and near-infrared fluorescence. Reproduced from Burggraaf et al (2015),30 by permission of the Nature Publishing Group.
The Lancet Gastroenterology & Hepatology 2016 1, DOI: ( /S (16) )
Copyright © 2016 Elsevier Ltd Terms and Conditions

5. Figure 4 Localisation of early neoplasia in Barrett's oesophagus
High-grade dysplasia (HGD) and early oesophageal adenocarcinoma (OAC) seen on fluorescence with corresponding white light endoscopy images. Reproduced from Joshi et al (2016),36 by permission of Thieme Medical Publishers. BO=Barrett's oesophagus. GOJ=gastro-oesophageal junction.
The Lancet Gastroenterology & Hepatology 2016 1, DOI: ( /S (16) )
Copyright © 2016 Elsevier Ltd Terms and Conditions