CT画像を応用した放射線治療計画の基礎的研究 : 4MV X線の外照射法への適用

抄録

To make the most of the locational information in a three dimensional picture, software was developed for therapeutic planning in the field of external irradiation. It contains algolism specifications for a volume calculation based on a newly devised formula for size calculation with an introductions of the concept of "target volume" for therapeutic planning. In the field of X-ray dose calculation, it permits the calculation of compound X-ray dose distribution resulting from the differences in the irradiation method. The major points are : 1. The three dimensional distribution of a X-ray dose may be shown on a given cut surface picture. 2. Calculation of the three dimensional distribution of a compound X-ray dose 3. Volume calculation through application of a space-compensatory formula 4. Calculation of a target-absorbed dose