Journal
BIOMEDICAL OPTICS EXPRESS
Volume 3, Issue 9, Pages 2299-2305Publisher
OPTICAL SOC AMER
DOI: 10.1364/BOE.3.002299
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Funding
- NIH grant [R01AR04796]
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Raman spectroscopy is used to gather information on the mineral and organic components of bone tissue to analyze their composition. By measuring the Raman signal of bone through spatially offset Raman spectroscopy the health of the bone can be determined. We've customized a system with 8 collection channels that consist of individual fibers, which are coupled to separate spectrometers and cooled CCDs. This parallel detection system was used to scan gelatin phantoms with Teflon inclusions of two sizes. Raman signals were decoupled from the autofluorescence background using channel specific polynomial fitting. Images with high contrast to background ratios of Raman yield and accurate spatial resolution were recovered using a model-based diffuse tomography approach. (c) 2012 Optical Society of America
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