| 摘要 |
PROBLEM TO BE SOLVED: To enable an examinee to surely stop breathing for imaging. SOLUTION: A profile figure D1 expressing the profile of a person and a plurality of point figures D2 placed on a prescribed pattern are equipped in a window part of a positioning light 31a (41a) relating to the subject X-ray CT device. Immediately before X-ray irradiation, the point figures D2 arranged in a straight line are lit ON in the order approaching the profile figure D1 and let the examinee inhale matching it, or the point figures D2 arranged in the straight line are lit ON in the order leaving the profile figure D1 and let the examinee exhale matching it. Then, point figures D2 arranged in a shape of mark with a cross are lit ON, and let the examinee stop breathing, and the X-ray is irradiated for imaging. COPYRIGHT: (C)2004,JPO&NCIPI
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