发明名称 |
EVALUATION AID AND EVALUATION DEVICE |
摘要 |
The present invention provides an evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and then evaluation is carried out through the digital X-ray dynamic image, and especially an evaluation aid which can be used for evaluating image qualities of a digital X-ray dynamic image for X-ray absorption parts having different X-ray absorption ratios, and an evaluation device provided with such an evaluation aid. The evaluation aid of the present invention is adapted to be used for taking a digital X-ray dynamic image thereof through which evaluation is carried out, and contains a fixed plate (plate-like body) including a plurality of regions having different X-ray absorption ratios; a rotating disk (movable body) having a plurality of wires (wire rods), the rotating disk capable of rotating (moving) with respect to the fixed plate so that the plurality of wires traverse X-ray with which the fixed plate is irradiated; and a driving motor (driving portion) which rotates (moves) the rotating disk with respect to the fixed plate. It is preferred that thicknesses and/or constituent materials of the plurality of regions of the fixed plate are different from each other, so that these regions have the different X-ray absorption ratios. |
申请公布号 |
EP2730224(B1) |
申请公布日期 |
2016.10.19 |
申请号 |
EP20120811887 |
申请日期 |
2012.07.02 |
申请人 |
NATIONAL UNIVERSITY CORPORATION, TOHOKU UNIVERSITY;MITAYA MANUFACTURING CO., LTD. |
发明人 |
CHIDA, KOICHI;KAGA, YUJI;YOKOUCHI, GORO |
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 |
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地址 |
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