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    • 2. 发明授权
    • Calibration phantom for quality assurance of image-based radiotherapy apparatus
    • 基于图像的放射治疗仪的质量保证校准模型
    • US07755031B2
    • 2010-07-13
    • US12349322
    • 2009-01-06
    • Hong Seok JangHoi Nam KimTae Suk SuhJi Na ChangSeoung Jong OhWon Kyun JungTeak Kwon Kim
    • Hong Seok JangHoi Nam KimTae Suk SuhJi Na ChangSeoung Jong OhWon Kyun JungTeak Kwon Kim
    • G01D18/00
    • A61B6/5276A61B6/583A61N2005/1061
    • A calibration phantom for quality assurance of an image-based radiotherapy apparatus The calibration phantom includes a body comprising a cylindrical acryl member having a predetermined diameter, the body having a center hole at a center axis thereof and a plurality of through-holes in outer circumferential portions thereof at a predetermined interval from the center hole; round stick-type density bars inserted into corresponding through-holes of the body and made of materials each with different densities; an acrylic cover detachably coupled with both ends of the body and having the same diameter as the body; and a plurality of bolts closely fastening the body with the cover by extending through the cover and the body and coupling with the nuts and each made of different materials. The cross-sectional shapes of the density bars and bolts appear on the image scanned by the CT apparatus and the radiotherapy apparatus.
    • 一种用于基于图像的放射治疗装置的质量保证的校准模型该校准体模包括:主体,其包括具有预定直径的圆柱形丙烯酸构件,主体在其中心轴线具有中心孔,并且具有多个外周中的通孔 其部分距中心孔预定间隔; 圆形棒状密度棒插入到身体的相应通孔中,并由各自具有不同密度的材料制成; 丙烯酸盖,其可拆卸地与主体的两端耦合并且具有与主体相同的直径; 以及多个螺栓,其通过延伸穿过盖和主体并与螺母联接并且每个由不同的材料制成,使主体与盖紧密地紧固。 密度棒和螺栓的横截面形状出现在由CT装置和放射治疗装置扫描的图像上。