Monte-Carlo simulation of a coded aperture SPECT apparatus using uniformly redundant arrays

Paul E. Gemmill; Roy C. Chaney; Ervin J. Fenyves

doi:10.1117/12.218651

8 September 1995 Monte-Carlo simulation of a coded aperture SPECT apparatus using uniformly redundant arrays

Paul E. Gemmill, Roy C. Chaney, Ervin J. Fenyves

Proceedings Volume 2551, Photoelectronic Detectors, Cameras, and Systems; (1995) https://doi.org/10.1117/12.218651
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Coded apertures are used in tomographic imaging systems to improve the signal-to-noise ratio (SNR) of the apparatus with a larger aperture transmissions area while maintaining the spatial resolution of the single pinhole. Coded apertures developed from uniformly redundant arrays (URA) have an aperture transmission area of slightly over one half of the total aperture. Computer simulations show that the spatial resolution of a SPECT apparatus using a URA generated coded aperture compared favorably with theoretical expectations and has a SNR that is approximately 3.5 to 4 times that of a single pinhole camera for a variety of cases.

Citation Download Citation

Paul E. Gemmill, Roy C. Chaney, and Ervin J. Fenyves "Monte-Carlo simulation of a coded aperture SPECT apparatus using uniformly redundant arrays", Proc. SPIE 2551, Photoelectronic Detectors, Cameras, and Systems, (8 September 1995); https://doi.org/10.1117/12.218651

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