X-ray CT apparatus, determination method, and storage medium
AssigneeCanon Medical Systems Corporation
InventorYu Sasaki
Life of this patent
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Abstract
An X-ray CT apparatus of an embodiment includes a processing circuitry. The processing circuitry detects X-rays radiated from an X-ray tube in units of photons. The processing circuitry stores first energy spectrum information acquired by detecting X-rays at a first timing. The processing circuitry acquires second energy spectrum information by detecting X-rays at a second timing after the first timing. The processing circuitry determines a state of the X-ray tube on the basis of the first energy spectrum information and the second energy spectrum information.
Claims7
An X-ray CT apparatus comprising a processing circuitry configured to:
- detect X-rays radiated from an X-ray tube in units of photons;
- store first energy spectrum information acquired by detecting X-rays at a first timing;
- acquire second energy spectrum information by detecting X-rays at a second timing after the first timing;
- and
- determine a state of the X-ray tube on the basis of the first energy spectrum information and the second energy spectrum information.
A determination method, using a computer, comprising:
- detecting X-rays radiated from an X-ray tube in units of photons by a photon counting X-ray detector;
- storing first energy spectrum information acquired by detecting X-rays at a first timing in a storage unit;
- acquiring second energy spectrum information by detecting X-rays at a second timing after the first timing;
- and
- determining a state of the X-ray tube on the basis of the first energy spectrum information and the second energy spectrum information.
A non-transitory computer-readable recording medium storing a program of causing a computer to:
- detect X-rays radiated from an X-ray tube in units of photons by a photon counting X-ray detector;
- store first energy spectrum information acquired by detecting X-rays at a first timing in a storage unit;
- acquire second energy spectrum information by detecting X-rays at a second timing after the first timing;
- and
- determine a state of the X-ray tube on the basis of the first energy spectrum information and the second energy spectrum information.
Dependencies are inferred from the claim text.