Patent ID: 11896410
Assignee: FUJIFILM HEALTHCARE CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The photon counting CT apparatus according to claim 1, wherein the map correction unit actually measures corrective measurement values by radiating X-rays from the X-ray tube and performing counting in each of the plurality of energy bands in each of three conditions including a vacant state in which no subject is arranged in the imaging range, a state in which a first corrective material with a predetermined thickness is arranged between the X-ray tube and the X-ray detector, and a state in which a second corrective material with a predetermined thickness is arranged between the X-ray tube and the X-ray detector, and corrects the measurement values in the material decomposition map with use of the corrective measurement values actually measured in each of the three conditions.