X-ray CT apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYuji Okajima, Shuya Nambu, Hiroaki Miyazaki
Life of this patent
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Abstract
An X-ray CT apparatus according to an embodiment includes a photon-counting X-ray detector including a plurality of pixels and processing circuitry configured to acquire first data in a resolution priority mode from a first pixel set out of the pixels, acquire second data in an energy decomposition mode from a second pixel set, which is different from the first pixel set, out of the pixels at sampling intervals longer than those of the resolution priority mode, and generate third data based on the first data and the second data.
Claims14
An X-ray CT apparatus comprising:
- a photon-counting X-ray detector including a plurality of pixels;
- and
- processing circuitry configured to set a resolution priority mode or an energy decomposition mode for each pixel, acquire first data in the resolution priority mode from a first pixel set out of the pixels, acquire second data in the energy decomposition mode from a second pixel set, which is different from the first pixel set, out of the pixels at sampling intervals longer than those of the resolution priority mode, and generate third data based on the first data and the second data.
An X-ray CT apparatus comprising:
- an X-ray detector including a plurality of pixels;
- counting circuitry configured to accumulate a signal output by each of the pixels according to an incident X-ray as count data, and perform readout of the accumulated count data, upon receiving a view trigger signal;
- and
- processing circuitry configured to acquire first data in a first mode using a first view trigger signal from a first pixel set out of the pixels, acquire second data in a second mode using a second view trigger signal from a second pixel set, which is different from the first pixel set, out of the pixels in a count acquisition period same as the first mode, and generate third data based on the first data and the second data.
An X-ray CT apparatus comprising:
- a photon-counting X-ray detector including a plurality of pixels;
- and
- processing circuitry configured to acquire first data in a resolution priority mode from a first pixel set out of the pixels, acquire second data in an energy decomposition mode from a second pixel set, which is different from the first pixel set, out of the pixels at sampling intervals longer than those of the resolution priority mode, and generate third data based on the first data and the second data, wherein
- the processing circuitry determines arrangement of the first pixel set and the second pixel set according to a region of interest in a subject.
Dependencies are inferred from the claim text.