Validation of hemoglobin and water molar absorption spectra in near-infrared diffuse optical tomography

Subhadra Srinivasan*, Brian W. Pogue, Shudong Jiang, Hamid Dehghani, Keith D. Paulsen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Near Infrared diffuse optical tomography was used to measure the molar absorption spectra for deoxyhemoglobin, oxyhemoglobin and water through phantom experiments. The measured spectra compensate for any systemic errors and errors arising from model-based estimation of concentrations of these chromophores, and show reasonable agreement with existing literature values. The spectra were validated by phantom experiments to obtain the oxygen dissociation curve. Variation of the partial pressure of oxygen in solution yielded results consistent with theory with mean error of 7.6% in estimation of oxygen saturation, and accurate within 5% in estimation of hemoglobin.

Original languageEnglish
Pages (from-to)407-415
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4955
DOIs
Publication statusPublished - 2003
EventPROGRESS IN BIOMEDICAL OPTICS AND IMAGING: Optical Tomography and Spectroscopy of Tissue V - San Jose, CA, United States
Duration: 26 Jan 200329 Jan 2003

ASJC Scopus subject areas

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

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