Patent ID: 9693743
Date: 2017-07-04
CPC Classifications: A61B,G01N,G01T,G06T

Claim:
1. A photon counting CT apparatus comprising: an X-ray source configured to generate X-rays; a hybrid detector including a plurality of integral type detectors and a plurality of photon counting type detectors, which detect X-rays generated from the X-ray source and are two dimensionally tiled on a detector array surface of the hybrid detector, the plurality of integral type detectors outputting integral signals concerning the detected X-rays, and the plurality of photon counting type detectors outputting a count signal for each of a plurality of energy bands concerning the detected X-rays; and a processing circuitry configured to estimate a count signal by a particular estimation target integral type detector of the plurality of integral type detectors based on an integral signal output from the particular estimation target integral type detector and a count signal output from the photon counting type detectors arranged around the particular estimation target integral type detector on the detector array surface; and reconstruct a photon counting type image based on the estimated count signal and the count signal.