Analysis of circular source-detector geometries for near-infrared tomographic imaging

Brian W. Pogue; Troy O. McBride; Shudong Jiang; Ulf L. Oesterberg; Keith D. Paulsen

doi:10.1117/12.434522

29 June 2001 Analysis of circular source-detector geometries for near-infrared tomographic imaging

Brian W. Pogue, Troy O. McBride, Shudong Jiang, Ulf L. Oesterberg, Keith D. Paulsen

Proceedings Volume 4250, Optical Tomography and Spectroscopy of Tissue IV; (2001) https://doi.org/10.1117/12.434522
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

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.

Citation Download Citation

Brian W. Pogue, Troy O. McBride, Shudong Jiang, Ulf L. Oesterberg, and Keith D. Paulsen "Analysis of circular source-detector geometries for near-infrared tomographic imaging", Proc. SPIE 4250, Optical Tomography and Spectroscopy of Tissue IV, (29 June 2001); https://doi.org/10.1117/12.434522

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