Patent ID: 7626172
Filing Date: 2009-12-01
Classification: A61B,G01T

Abstract:
1. A nuclear medical diagnosis apparatus for performing a diagnosis by using gamma radiation of a plurality of energies, the apparatus comprising: a detector for detecting radiation; a signal processing unit for acquiring information on an energy and a position from a signal of the detector; an image creation unit for creating an image based on an energy corresponding to the gamma radiation of each of energies according to the data from the signal processing unit; an image correction operation unit which performs a convolution operation on the image corresponding to the gamma radiation of the higher-energy side among images created for the respective energies by the image creation unit, wherein the convolution operation is executed by applying count values to be subtracted from a lower-energy side image to peripheral pixels of a pixel for which higher-energy gamma radiation is detected; and a corrected image creation unit for subtracting the correction image from an image corresponding to the gamma radiation of the lower-energy side among the images created for respective energies by the image creation unit.