Patent ID: 9595101
Date: 2017-03-14
CPC Classifications: A61B,G06K,G06T

Claim:
1. An X-ray CT apparatus comprising: acquiring circuitry configured to count photons derived from X-rays that have passed through a subject and to acquire a result obtained by discriminating energy levels of the counted photons as a counting result; and processing circuitry configured to set an energy dividing set by setting one or more energy discrimination regions having a fine granularity level in an energy region positioned near a characteristic energy value indicating the X-ray absorption characteristic of a substance designated by an operator and by setting one or more energy discrimination regions having a coarse granularity level in an energy region other than the energy region, to notify the acquiring circuitry of the energy dividing set, to receive the counting result acquired by the acquiring circuitry by allocating a counted value to each of a plurality of energy discrimination regions that are set in the energy dividing set, and to reconstruct image data by using the received counting result.