Spectrally constrained NIR tomography for breast imaging: Simulations and clinical results

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

A multi-spectral direct chromophore and scattering reconstruction for frequency domain NIR tomography has been implemented using constraints of the known molar spectra of the chromophores and a Mie theory approximation for scattering. This was tested in a tumor-simulating phantom containing an inclusion with higher hemoglobin, lower oxygenation and contrast in scatter. The recovered images were quantitatively accurate and showed substantial improvement over existing methods; and in addition, showed robust results tested for up to 5% noise in amplitude and phase measurements. When applied to a clinical subject with fibrocystic disease, the tumor was visible in hemoglobin and water, but no decrease in oxygenation was observed, making oxygen saturation, a potential diagnostic indicator.

Original languageEnglish
Article number59
Pages (from-to)293-300
Number of pages8
JournalProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume5693
DOIs
Publication statusPublished - 2005
EventOptical Tomography and Spectroscopy of Tissue VI - San Jose, CA, United States
Duration: 23 Jan 200526 Jan 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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