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- Pifferi, A, et al.
(författare)
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Multi-distance optical characterization of the female breast by time-resolved diffuse spectroscopy
- 2003
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Ingår i: PHOTON MIGRATION AND DIFFUSE-LIGHT IMAGING. - : SPIE. - 1996-756X .- 0277-786X. - 0819450081 ; 5138, s. 6-11
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Konferensbidrag (refereegranskat)abstract
- Two systems for time-resolved diffuse spectroscopy were used for the optical characterization of the female breast in 4 volunteers. A first system was a compact laser diode instrument operated at 660 and 785 nm, while the second one was a broadband laboratory set-up based on mode-locked lasers tunable in the 610-1000 nm range. Measurements were obtained both in transmittance and in reflectance geometry at 5 inter-fiber distances ranging from I to 4 cm at different locations on the breast. Distinct spectral features both in absorption and in scattering were observed among the 4 volunteers, and for each subject between reflectance and transmittance measurements. These differences are correlated with the abundance of the glandular tissue and blood absorption. Upon increasing, the inter-fiber distance in reflectance, deeper tissue structures were investigated, generally resulting in higher water contribution.
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