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- W1505523131 abstract "The utility of coded aperture ..gamma.. camera imaging of radioisotope distributions in Nuclear Medicine is in its ability to give depth information about a three dimensional source. We have calculated imaging with Fresnel zone plate and multiple pinhole apertures to produce coded shadows and reconstruction of these shadows using correlation, Fresnel diffraction, and Fourier transform deconvolution. Comparisons of the coded apertures and decoding methods are made by evaluating their point response functions both for in-focus and out-of-focus image planes. Background averages and standard deviations were calculated. In some cases, background subtraction was made using combinations of two complementary apertures. Results using deconvolution reconstruction for finite numbers of events are also given." @default.
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- W1505523131 date "1976-07-01" @default.
- W1505523131 modified "2023-09-24" @default.
- W1505523131 title "Comparisons of coded aperture imaging using various apertures and decoding methods. [gamma camera imaging of radionuclides in tissues]" @default.
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