| 摘要 |
PURPOSE:To know a curing effect and a degree of affection on each organ by inputting a contour of an organ from a CT image, drawing a dose distribution figure after the dose is calculated, calculating these intersections and distances between intersections on the contour of the organ, calculating and summing areas at the same dose level between slices and obtaining a hystogram. CONSTITUTION:As input and output of the contour of an organ, on every one CT image based on a CT image extracting means, a contour information on each organ is input. A dose calculating means 3 performs a dose calculation at an intersection of a calculation matrix of each CT slice face and a dose distribution figure drawing means 4 draws a dose distribution figure as an index from a dose value at each point. In addition, an intersection of the distribution figure and the contour of the organ is calculated from an intersection calculating means 5 and a calculating means 6 for distance between intersections calculates the length of the contour of the organ existing in the same dose distribution. An area calculating means 7 calculates the dose value on the surface of the organ at the same dose level between CT slices. A hystogram obtaining means 8 repeats a functional flow 7 on all the slices and obtains the area of the same dose distribution level of the same organ to obtain a hystogram of the area value of every dose distribution level on every organ. |
