Oximetry of Tissue Vasculature with Near Infrared Spectroscopy: Application to Tumors

Hanli Liu, Yueqing Gu, Jae G. Kim, Ralph P. Mason

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Near Infrared (NIR) spectroscopy has been demonstrated as a new means to quantify oxygenation of tissue vasculature, in particular changes in hemoglobin concentrations and oxygen saturation. A novel application such oximetry to monitoring of tumor vascular oxygenation during respiratory interventions will be presented. Our recent results obtained with a one-channel NIR spectrometer observing rat breast and prostate tumors in vivo have demonstrated a biphasic response of tumor vascular oxygenation when the inhaled gas is switched from air to carbogen. We present a mathematical model associating the tumor vascular oxygenation to both well-perfused and poorly perfused regions in the tumor. Furthermore, laboratory phantom experiments and computational simulations using the Finite Element Method have been conducted to verify this tumor hemodynamic model.

Original languageEnglish (US)
Title of host publicationConference on Lasers and Electro-Optics, CLEO 2003
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781557528209
StatePublished - 2003
Externally publishedYes
EventConference on Lasers and Electro-Optics, CLEO 2003 - Baltimore, United States
Duration: Jun 1 2003Jun 6 2003

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceConference on Lasers and Electro-Optics, CLEO 2003
Country/TerritoryUnited States
CityBaltimore
Period6/1/036/6/03

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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