Endoscopic optical coherence tomography and laser-induced fluorescence spectroscopy in a murine colon cancer model
- 1 April 2006
- journal article
- Published by Wiley in Lasers in Surgery and Medicine
- Vol. 38 (4), 305-313
- https://doi.org/10.1002/lsm.20305
Abstract
Background and Objectives The diagnostic feasibility of optical coherence tomography (OCT) and laser‐induced fluorescence (LIF) have been evaluated for human colorectal cancer. This study applies these technologies to a murine model of colorectal adenoma. Study Design/Materials and Methods The lower colon of 10 ApcMin and two C57BL/6J mice was surveyed over five 4‐week intervals using a prototype 2.0 mm diameter OCT‐LIF endoscope‐based system. Four categories were histologically classified: control C57BL/6J, adenomatous, non‐diseased regions of adenomatous, and non‐diseased ApcMin. OCT images were compared to histology. Spectra from the four categories were compared via the Student's t‐test. Results Three ApcMin and two control mice completed the study. One adenoma was histologically identified; OCT visualized mucosal thickening/abnormal mass development over the imaging timepoints. LIF spectral comparisons revealed decreased 405 nm intensity and the presence of a peak at 680 nm in the adenomatous ApcMin. Conclusions These preliminary data indicate endoscopic OCT‐LIF has the potential to identify colorectal adenomas in murine models. Lasers Surg. Med. 38:305–313, 2006.Keywords
This publication has 19 references indexed in Scilit:
- Combined application of optical methods to increase the information content of optical coherent tomography in diagnostics of neoplastic processesQuantum Electronics, 2002
- High-resolution endoscopic imaging of the GI tract: A comparative study of optical coherence tomography versus high-frequency catheter probe EUSGastrointestinal Endoscopy, 2001
- In Vivo Endoscopic Optical Coherence Tomography of the Human Gastrointestinal Tract - Toward Optical BiopsyEndoscopy, 2000
- High-resolution endoscopic imaging of the GI tract using optical coherence tomographyGastrointestinal Endoscopy, 2000
- Fluorescence Spectroscopy Application in the Express-evaluation of the Gastrointestinal MicrofloraCritical Reviews in Biomedical Engineering, 2000
- Detection of dysplasia at colonoscopy using laser-induced fluorescence: a blinded studyGastrointestinal Endoscopy, 1996
- Multiple Intestinal Neoplasia Caused by a Mutation in the Murine Homolog of the APC GeneScience, 1992
- Ultraviolet laser‐induced fluorescence of colonic tissue: Basic biology and diagnostic potentialLasers in Surgery and Medicine, 1992
- Gastrointestinal tissue diagnosis by laser-induced fluorescence spectroscopy at endoscopyGastrointestinal Endoscopy, 1990
- Spectroscopic, morphologic, and cytotoxic studies on major fractions of hematoporphyrin derivative and Photofrin IILasers in Surgery and Medicine, 1987