| 发明名称 |
X-RAY CT APPARATUS |
| 摘要 |
According to one embodiment, there is provided an X-ray CT apparatus which comprises high voltage generation processing circuitry configured to selectively generate a first voltage and a second voltage higher than the first tube voltage; a first filter formed from a material having substantially the same atomic number as that of a contrast material to be administered to an object and configured to perform radiation quality adjustment; a second filter formed from a material different from the contrast material and configured to perform radiation quality adjustment; a filter switching mechanism configured to switch between the first filter and the second filter to be interposed between a X-ray tube and the object; and control processing circuitry configured to control the high voltage generation unit and the filter switching mechanism to synchronize switching between the first voltage and the second voltage with switching between the first filter and the second filter. |
| 申请公布号 |
US2016038108(A1) |
申请公布日期 |
2016.02.11 |
| 申请号 |
US201514885621 |
申请日期 |
2015.10.16 |
| 申请人 |
Kabushiki Kaisha Toshiba ;Toshiba Medical Systems Corporation |
发明人 |
TAMURA Emi;SAITO Yasuo;TAKAYAMA Takuzo;MIYAZAKI Hiroaki;NAKAI Hiroaki |
| 分类号 |
A61B6/00;A61B6/03 |
主分类号 |
A61B6/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An X-ray CT apparatus comprising:
an X-ray tube; high voltage generation processing circuitry configured to selectively generate a first tube voltage to be applied to the X-ray tube and a second tube voltage higher than the first tube voltage; a first filter formed from a material having substantially the same atomic number as that of a contrast material to be administered to an object and configured to perform radiation quality adjustment; a second filter formed from a material different from the contrast material and configured to perform radiation quality adjustment; a filter switching mechanism configured to switch between the first filter and the second filter to be interposed between the X-ray tube and the object; an X-ray detector configured to detect X-rays transmitted through the object; reconstruction processing circuitry configured to reconstruct an image based on projection data obtained by an output from the X-ray detector; and control processing circuitry configured to control the high voltage generation unit and the filter switching mechanism to synchronize switching between the first tube voltage and the second tube voltage with switching between the first filter and the second filter. |
| 地址 |
Minato-ku JP |
