Tube By Tube Analysis Of Field Uniformity For Gamma Cameras

G. Donald Frey; Armand P. Glassman

doi:10.1117/12.931802

16 July 1981 Tube By Tube Analysis Of Field Uniformity For Gamma Cameras

G. Donald Frey, Armand P. Glassman

Proceedings Volume 0273, Application of Optical Instrumentation in Medicine IX; (1981) https://doi.org/10.1117/12.931802
Event: Application of Optical Instrumentation in Medicine, 1981, San Francisco, United States

Abstract

This paper describes a computer program that is used to analyze the field uniformity of gamma cameras. The daily floods collected on the gamma camera are digitized and analyzed. The program calculates a number of quantities that pertain to the flood image as a whole and also the counts and the standard deviation in small areas centered over each photomultiplier tube. These daily results are compared either to a standard reference image or to the results averaged over the previous five days. Changes in the region of each photo-multiplier tube are displayed as an artificially constructed image. Observers find it easier to detect changes in this artificially constructed image than in the original image.

Citation Download Citation

G. Donald Frey and Armand P. Glassman "Tube By Tube Analysis Of Field Uniformity For Gamma Cameras", Proc. SPIE 0273, Application of Optical Instrumentation in Medicine IX, (16 July 1981); https://doi.org/10.1117/12.931802

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