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    • 10. 发明授权
    • Apparatus for realtime fast reconstruction and display of dose
distribution
    • 用于实时快速重建和显示剂量分布的装置
    • US4455609A
    • 1984-06-19
    • US301012
    • 1981-09-10
    • Kiyonari InamuraYasuo UedaNobumasa FurushimaKeisuke Shigaki
    • Kiyonari InamuraYasuo UedaNobumasa FurushimaKeisuke Shigaki
    • G06Q50/24A61N5/10G01T1/02G06Q50/22G01T1/16
    • A61N5/1048G01T1/02A61N5/103
    • Apparatus for realtime fast reconstruction and display of dose distribution which calculates the dose of absorbed radiation in an irradiated area defined by coordinates and displays the results of the calculation. The apparatus comprises an input unit capable of setting parameters in the form of time-continuous quantities; a dedicated digital computer serving to control the input by the input unit; and a dedicated fast reconstructer for calculating the absorbed dose for each coordinate in the exposed area at a high speed by decomposing calculation formulae necessary for obtaining isodose curves on the basis of the parameter set in the input unit and effecting parallel calculation of the decomposed formulae, thereby obtaining the isodose curves; and video display for storing and displaying the isodose curves classified in terms of different isodose levels. The calculation is normally cyclically repeated to provide a motion picture of the dose distribution when the magnitude of the parameters is varied.
    • 用于实时快速重构和显示剂量分布的装置,其计算由坐标定义的照射区域中的吸收辐射的剂量并显示计算结果。 该装置包括能够以时间连续量的形式设定参数的输入单元; 专用数字计算机,用于控制输入单元的输入; 以及专用快速重构器,用于通过根据输入单元中设置的参数分解获得等剂量曲线所需的计算公式,并且对分解公式进行并行计算,计算高速曝光区域中每个坐标的吸收剂量, 从而获得等剂量曲线; 和用于存储和显示根据不同等剂量水平分类的等剂量曲线的视频显示。 通常循环重复计算,以在参数的大小变化时提供剂量分布的运动图像。