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Rotational Scanning Mechanism of Multi-Point Synchronous Detection for Near Infrared Diffuse Optical Tomography

[+] Author Affiliations
Min-Chun Pan, Chien-Hung Chen, Lian-Yu Chen

National Central University, Jhongli, Taiwan

Min-Cheng Pan

Tungnan University, Taipei, Taiwan

Paper No. BioMed2008-38073, pp. 107-108; 2 pages
doi:10.1115/BioMed2008-38073
From:
  • ASME 2008 3rd Frontiers in Biomedical Devices Conference
  • ASME 2008 3rd Frontiers in Biomedical Devices Conference
  • Irvine, California, USA, June 18–20, 2008
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4833-7 | eISBN: 0-7918-3823-4
  • Copyright © 2008 by ASME

abstract

This study aims at the design, implementation, and verification of a near infrared (NIR) diffuse optical tomography (DOT) electro-optical imaging system based on a measuring instrument with scanning mechanism of synchronous multi-point detection and an image reconstruction scheme implemented on an off-line PC. The developed measurement instrument possesses a high degree of angular resolution and can be operated in a continuous-intensity or intensity modulation scheme to acquire output NIR radiance signals. Experimental trials are conducted using both homogeneous and heterogeneous phantoms made of high-scattering Intralipid. Promising results have been obtained with a superior spatial resolution, especially for absorption image, compared with the system with fixed number of detection channels.

Copyright © 2008 by ASME

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