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Proceedings Paper

Analysis of circular source-detector geometries for near-infrared tomographic imaging
Author(s): Brian W. Pogue; Troy O. McBride; Shudong Jiang; Ulf L. Oesterberg; Keith D. Paulsen
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Paper Abstract

Near-infrared imaging is being examined clinically as a diagnostic tool to image hemoglobin concentration and oxygen saturation within tissue. Optical projection measurements can be detected from tissue surfaces and combined with an appropriately designed diffusion model-based image reconstruction algorithm to recover maps of the tissue interior. One important issue in the development of this modality is that the geometry of source and detector fibers has a significant impact of the resulting images. In this paper we examine the tradeoffs between using a full circular array of measurements versus a partial array of measurements, as often described in the fan beam imaging approach. Case examples are presented to qualitatively illustrate the possible improvement in going from a circular geometry to the fan-beam geometry of detectors.

Paper Details

Date Published: 29 June 2001
PDF: 7 pages
Proc. SPIE 4250, Optical Tomography and Spectroscopy of Tissue IV, (29 June 2001); doi: 10.1117/12.434522
Show Author Affiliations
Brian W. Pogue, Dartmouth College (United States)
Troy O. McBride, Dartmouth College (United States)
Shudong Jiang, Dartmouth College (United States)
Ulf L. Oesterberg, Dartmouth College (United States)
Keith D. Paulsen, Dartmouth College (United States)

Published in SPIE Proceedings Vol. 4250:
Optical Tomography and Spectroscopy of Tissue IV
Britton Chance; Robert R. Alfano; Bruce J. Tromberg; Mamoru Tamura; Eva Marie Sevick-Muraca, Editor(s)

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