Scatter elimination technique and apparatus in radionuclide emis

Details Scatter elimination technique and apparatus in radionuclide emis Scatter elimination technique and apparatus in radionuclide emis

1995-11-21

1997-05-27

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

378 87, G01T 117

Patent

active

056334990

ABSTRACT:
Scatter errors are eliminated from a gamma camera image on a spatially dependent basis. A global scatter curve is obtained and normalized for each local area. Based on this local scatter curve and the local spectrum, a local correction factor is obtained. The correction factors are then used to remove scatter errors from the image. The method provides spatially-dependent correction based on measured scatter. It does not require the camera's zero-scatter response to be known and it does not require the fitting of spectra either by a polynomial or by a theoretical scatter function. It allows for rapid determination of scatter correction factors for each pixel in an image. It produces excellent results for both transmission and emission images.

REFERENCES:
patent: 4839808 (1989-06-01), Koral et al.
patent: 5081581 (1992-01-01), Koral et al.
patent: 5227968 (1993-07-01), Ichihara
patent: 5293195 (1994-03-01), Berlad et al.
patent: 5315506 (1994-05-01), Wang et al.
patent: 5371672 (1994-12-01), Motomura et al.
patent: 5431161 (1995-07-01), Ryals et al.
patent: 5434414 (1995-07-01), Berlad et al.
patent: 5438202 (1995-08-01), Matanzon et al.
Irene Buvat, et al., "Comparative Assessment of Nine Scatter Correction Methods Based on Spectral Analysis Using Monte Carlo Simulations"; The Journal of Nuclear Medicine; vol. 36--No. 8, Aug. 1995, pp. 1476-1488.
M.S. Rosenthal, et al., "Quantitative SPECT Imaging", The Journal of Nuclear Medicine; vol. 36--No. 8, Aug. 1995, pp. 1489-1513.

Affiliated with

Also associated with

Rating

Scatter elimination technique and apparatus in radionuclide emis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scatter elimination technique and apparatus in radionuclide emis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scatter elimination technique and apparatus in radionuclide emis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2330997