Computer algorithms for the detection of brain scintigram abnormalities.

Abstract Algorithms for computer analysis of digitized brain scintigrams are described. A technique of variable thresholding and region enumeration is used to detect abnormalities which project clear of the calvarium, while a metric comparison detects distortions of the brain outline. The methods have been employed to process scintigrams digitized by means of an image dissector camera operating under control of an SEL-840A computer. It is felt that the algorithms will be equally applicable to brain scintigrams digitized by other means and that they may prove adaptable to the analysis of other organ system images.

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