| 摘要 |
PURPOSE:To totally extract an isodose curved line on a surface and to confirm dose distribution with a simple means by providing a three-mensional matrix surface isodose curved line extracting means and a picture superimpose processing mans to stereoscopically superimpose the outline of a body, the outline of an internal organ and a three-dimensional matrix surface isodose curved line. CONSTITUTION:In a three-dimensional matrix surface isodose curved line extracting means 6, a maximum dose value is searched from the result of dose computation for a stereoscopic matrix lattice point and when the maximum dose value is defined as 100%, the area of the 90% isodose, the area of the 80% isodose... and the area of the 10% isodose are calculated. Since the three- dimensional isodose curved line on a surface is obtained for each isodose area, the surface isodose curved line is extracted. Then, in a picture superimpose processing means 7, the three-dimensional surface isodose curved line, the outline of the body and the outline of the internal organ are stereoscopically superimposed and extracted. |
