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 language | English |
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Article number | 59 |
Pages (from-to) | 293-300 |
Number of pages | 8 |
Journal | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
Volume | 5693 |
DOIs | |
Publication status | Published - 2005 |
Event | Optical Tomography and Spectroscopy of Tissue VI - San Jose, CA, United States Duration: 23 Jan 2005 → 26 Jan 2005 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Biomaterials
- Radiology Nuclear Medicine and imaging