Comparison between ultraviolet-visible and near-infrared elastic scattering spectroscopy of chemically induced melanomas in an animal model

2004 ◽  
Vol 9 (6) ◽  
pp. 1320 ◽  
Author(s):  
Ousama M. A’Amar ◽  
Ronald D. Ley ◽  
Irving J. Bigio
Keyword(s):  
Animal Model ◽  
Elastic Scattering ◽  
Near Infrared ◽  
Elastic Scattering Spectroscopy ◽  
Chemically Induced

Elastic scattering spectroscopy in vivo: optical biopsies of cancers of the breast and GI tract

2000 ◽  
Author(s):  
David C. O. Pickard ◽  
Gavin M. Briggs ◽  
Christobel Saunders ◽  
Sunil Lakhani ◽  
Paul M. Ripley ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Gi Tract ◽  
Elastic Scattering Spectroscopy

scholarly journals Usefulness of a finger-mounted tissue oximeter with near-infrared spectroscopy for evaluating the intestinal oxygenation and viability in rats

Surgery Today ◽  
2020 ◽  
Author(s):  
Yuhi Suzuki ◽  
Masayoshi Yamamoto ◽  
Kosuke Sugiyama ◽  
Toshiya Akai ◽  
Katsunori Suzuki ◽  
...  
Keyword(s):  
Animal Model ◽  
Intestinal Ischemia ◽  
Near Infrared ◽  
Tissue Oxygenation ◽  
Promising Result ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Histological Score ◽  
Ischemic Tissue ◽  
Normal Intestine

Abstract Purpose To investigate the utility of the device for evaluating intestinal oxygenation and viability using an animal model. Methods Sprague–Dawley rats underwent laparotomy under general anesthesia, and the blood vessels in the terminal ileum were clamped to create ischemia. We measured the regional tissue oxygenation saturation (rSO2) using an oximeter after 1, 3, and 6 h of vessel clamping. Ischemic tissue damage was assessed using a histological score. The intestine was reperfused after each clamping period, and intestinal rSO2 and survival rate were evaluated. Results When reperfusion was performed at 1 and 3 h after ischemia, rSO2 increased after 10 min, and it improved to the same level as for normal intestine after 1 h; all rats survived for 1 week. In contrast, after 6 h of ischemia, rSO2 did not increase after reperfusion, and all animals died within 2 days. The histological scores increased after 1 h of reperfusion, with longer clamping periods. Conclusion A finger-mounted tissue oximeter could evaluate intestinal ischemia and the viability, which is thus considered to be a promising result for future clinical application.

Diagnosis of dysplasia in Barrett's oesophagus with in-situ elastic-scattering spectroscopy

2000 ◽  
Author(s):  
David C. O. Pickard ◽  
Laurence B. Lovat ◽  
Marco Novelli ◽  
Paul M. Ripley ◽  
Christine Kelly ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Barrett’S Oesophagus ◽  
Barrett's Oesophagus ◽  
Elastic Scattering Spectroscopy
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