BRAIN TOMOGRAPHIC DYNAMIC IMAGE ANALYZING APPARATUS

摘要

In order to provide a tomographic image analyzing apparatus which is simple and which obtains stable results, the tomographic image analyzing apparatus according to this invention includes an image standardizing unit which transforms PET images, in advance of tomographic image analysis, so that the contour of the brain of an subject appearing in the PET images become the contour of a brain represented by standard data. By carrying out such transforming operation before the analysis, there is no need to acquire MRI images like before, to be able to ease the burden on the subject. And according to this invention, the time of analysis is shortened. Further, according to this invention, an analysis of time variations of radioactive drug distribution is conducted with respect to a corresponding site on standardized PET images which corresponds to the ROI on the standard data. This can make analysis results stable.

主权项

1. A tomographic image analyzing apparatus for analyzing dynamic distribution images which are tomographic images showing distributions of a radioactive drug, the apparatus comprising:
a storage device storing beforehand standard data showing a shape of a standard brain; a distribution image standardizing device transforming a form of brain in the dynamic distribution images into a form of brain shown in the standard data, whereby the dynamic distribution images are converted to standardized distribution images having a distribution of the radioactive drug standardized; and an analyzing device carrying out an analysis of time variations of radioactive drug distribution based on the standardized distribution images.