Modified diffusion models for steady-state broadband reflectance with a needle-like optic probe

H. Liu, M. Johns, Cole A. Giller

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Theoretical models available for optical reflectance with small source-detector separations are limited. In this study we reported two modified diffusion models for steady-state, broadband (500-590 nm) reflectance with source-detector separations of 0.125-0.25 mm and 0.25-1.0 mm. For the former case, the major modifications are D = 1/3μs' and z0 = 1/μs'; for the latter case, an additional modification is to multiply the separation by a factor of 2. Monte Carlo simulations were used to confirm the modified models at three different hemoglobin concentrations with relative errors of 12% or smaller. These models provide the possibility to extract local optical and physiological parameters of blood-perfused tissues from reflectance data measured with a needle-like probe.

Original languageEnglish (US)
Pages (from-to)76-81
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4250
DOIs
StatePublished - Jan 1 2001
EventOptical Tomography and Spectroscopy of Tissue IV - San Jose, CA, United States
Duration: Jan 21 2001Jan 23 2001

Fingerprint

Diffusion Model
Reflectance
needles
Needles
Broadband
Optics
Probe
optics
broadband
reflectance
probes
Detector
Hemoglobin
Relative Error
Detectors
Theoretical Model
Blood
detectors
Multiplication
hemoglobin

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Modified diffusion models for steady-state broadband reflectance with a needle-like optic probe. / Liu, H.; Johns, M.; Giller, Cole A.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4250, 01.01.2001, p. 76-81.

Research output: Contribution to journalConference article

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