Nuclear medicine imaging apparatus

Details Nuclear medicine imaging apparatus Nuclear medicine imaging apparatus

1993-09-22

1995-11-14

Porta, David P.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

25036309, 25036307, G01T 1166

Patent

active

054669391

ABSTRACT:
A first image collection memory collects two-dimensional image data within a predetermined energy window to constitute a fine matrix. A second image collection memory collects three-dimensional image data, including energy spectral information, to constitute a coarse matrix. Each pixel of the data collected in the second image collection memory is subjected to a scatter correction with energy weighted acquisition using a weight function. Correction coefficients are derived from a ratio between data before the correction and data after the correction, and by interpolation processing for each pixel in the fine matrix, and are applied to the image data collected in the first image collection memory. The data collected in the second image collection memory is subjected to two-dimensional low-pass filter processing. The scatter correction with the energy weighted acquisition is effected for each data collected in the second image collection memory such that the function is applied to the data before the filter processing, or after the filter processing.

REFERENCES:
patent: 4780823 (1988-10-01), Stoub et al.
patent: 4839808 (1989-06-01), Koral et al.
patent: 4873632 (1989-10-01), Logan et al.
patent: 5227968 (1993-07-01), Ichihara
patent: 5293195 (1994-03-01), Berlad et al.

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