Importance

Loading Importance Indicators...

Abstract

A photon counting CT apparatus and a substance decomposition method can be provided. A storage unit is configured to acquire an energy spectrum of an X-ray transmitted through a calibration member in which a first base substance and a second base substance are combined, while changing a thickness of the first base substance and a thickness of the second base substance, with a reference X-ray dose, and store the energy spectrum as calibration data in advance. A correction table creation unit acquires the energy spectrum of the X-ray transmitted through the calibration member while changing the thickness of the first base substance, thickness of the second base substance, and X-ray dose, and creates a correction table indicating a relationship between the number of X-ray photons and the X-ray dose for each energy bin. An image generation unit generates a tomographic image decomposed for each substance based on the calibration data and the correction table.

Loading the Abstract Image...

First Claim