評価用補助具および評価用装置

Japanese Patent JP5859232

B2

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.

Koichi Senda
Yuji Kaga
Goro Yokouchi

JP2011152322A

February 10, 2016

July 08, 2011

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Tohoku University
Mitaya Manufacturing Co., Ltd.

A61B6/00

JP2004243128A
JP2004298617A
JP2002095659A
JP2000201917A

US6076966

Inoue Akifumi
Takeshi Ebe
Kazuo Asahi
Tatsuya Masuda

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