发明名称 |
PHOTON COUNTING APPARATUS |
摘要 |
According to on embodiment, The X-ray tube generates X-rays. The X-ray detector detects the X-rays transmitted through a subject. The data acquisition circuitry acquires count data concerning a count number of the detected X-rays for energy bands. The memory circuitry stores data of a response function that associates incident X-rays on the X-ray detector with a response characteristic of a system including the X-ray detector and the data acquisition circuitry. The processing circuitry calculates an X-ray absorption amount of each of a plurality of base substances based on the count data concerning the energy bands acquired by the data acquisition circuitry, an energy spectrum of the incident X-rays, and the response function. |
申请公布号 |
US2016095561(A1) |
申请公布日期 |
2016.04.07 |
申请号 |
US201514870386 |
申请日期 |
2015.09.30 |
申请人 |
KABUSHIKI KAISHA TOSHIBA ;Toshiba Medical Systems Corporation |
发明人 |
TAMURA Emi |
分类号 |
A61B6/00 |
主分类号 |
A61B6/00 |
代理机构 |
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代理人 |
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主权项 |
1. A photon counting apparatus comprising:
an X-ray tube configured to generate X-rays; an X-ray detector configured to detect the X-rays generated by the X-ray tube and transmitted through a subject; a data acquisition circuitry configured to acquire count data concerning a count number of the detected X-rays for a plurality of energy bands based on an output signal from the X-ray detector; a memory circuitry configured to store data of a response function that associates incident X-rays on the X-ray detector with a response characteristic of a system including the X-ray detector and the data acquisition circuitry; and a processing circuitry configured to calculate an X-ray absorption amount of each of a plurality of base substances based on the count data concerning the plurality of energy bands acquired by the data acquisition circuitry, an energy spectrum of the incident X-rays generated by the X-ray tube, and the response function readout from the memory circuitry. |
地址 |
Minato-ku JP |