发明名称 |
X-RAY POSITIONING APPARATUS, X-RAY POSITIONING METHOD, AND ATTENTIONAL IMAGE PHOTOGRAPHING METHOD |
摘要 |
An X-ray positioning apparatus according to the present invention is provided with an X-ray video device that generates second X-ray image data in which a respiratory signal of a patient and first X-ray image data are related to each other, a positioning computer that generates patient platform control data for controlling a patient platform, and a photographing trigger generation apparatus that outputs a photographing trigger signal to an X-ray tube; the X-ray positioning apparatus is characterized in that the photographing trigger generation apparatus generates the photographing trigger signal, in accordance with a first frame rate and a second frame rate that is higher than the first frame rate, and in that the positioning computer generates the patient platform control data, based on a reference image and one X-ray image selected from consecutively photographed images that are photographed at the second frame rate. |
申请公布号 |
US2015131780(A1) |
申请公布日期 |
2015.05.14 |
申请号 |
US201214400802 |
申请日期 |
2012.07.13 |
申请人 |
Tsunoo Takanori;Ina Nobuhiko |
发明人 |
Tsunoo Takanori;Ina Nobuhiko |
分类号 |
A61N5/10 |
主分类号 |
A61N5/10 |
代理机构 |
|
代理人 |
|
主权项 |
1. An X-ray positioning apparatus that controls a patient platform by use of an X-ray image so as to position a diseased site of a patient at a radiation irradiation position planned in a treatment plan, the X-ray positioning apparatus comprising:
an X-ray video device that obtains first X-ray image data outputted from an X-ray detector for detecting an X-ray radiated by an X-ray tube and generates second X-ray image data in which a respiratory signal related to respiration of the patient and the first X-ray image data are related to each other; a positioning computer that compares a diseased site in the second X-ray image data with a diseased site in a reference image, which is a positioning reference, calculates a postural correction amount in such a way that an actual posture coincides with a posture in the treatment plan, and then generates patient platform control data for controlling the patient platform; and a photographing trigger generation apparatus that outputs a photographing trigger signal for radiating X-rays in accordance with two or more frame rates to the X-ray tube, based on the respiratory signal and a frame rate control signal including photographing conditions for consecutively photographed images in the first X-ray image data, wherein the photographing trigger generation apparatus generates the photographing trigger signal, in accordance with a first frame rate and a second frame rate that is higher than the first frame rate, and wherein the positioning computer generates the patient platform control data, based on the reference image and one X-ray image selected from the consecutively photographed images, in the second X-ray image data, that are photographed at the second frame rate. |
地址 |
Chiyoda-ku JP |