Patent ID: 9561011
Date: 2017-02-07
CPC Classifications: A61B

Claim:
1. An X-ray CT apparatus comprising: an X-ray source configured to emit an X-ray; an X-ray detector configured to detect the X-ray; and a processing circuitry, wherein the processing circuitry is configured to: generate perfusion data of an object based on X-ray detection data detected by exposing the X-ray to the object with injecting contrast medium into the object; calculate a perfusion parameter for each region of a plurality of regions of interest, each perfusion parameter including an elapse of time from a predetermined time to a time to peak of one of a plurality of time variations in density of the contrast medium obtained based on the perfusion data and each of the plurality of time variations corresponding to one region of interest of a plurality of regions of interest; divide a period corresponding to the plurality of time variations into a plurality of divided time ranges; determine, for each of the divided time ranges, a region of interest of the plurality of regions of interest whose corresponding perfusion parameter falls within the divided time range; generate an image for each of the plurality of divided time ranges, the image for one of the plurality of divided time ranges showing only profusion data of the region of interest whose perfusion parameter falls within the one of the plurality of divided time ranges; and sequentially display the images for each of the plurality of divided time ranges on a display unit.