治療計画用電算機による原体照射線量分布の計算 : 第一報打抜照射の線量分布計算

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Many works have been reported for the application of computer technique to radiation treatment planning in the these one and half decades. And it seems that theoretical back ground and computing procedures for dosage calculation have been almost established. Several kinds of commercial computers which are exclusively used for the advanced treatment planning system including all common modalities are now increasing in the field of radiotherapy, instead of general purpose computers. It is reasonable and effective to apply, modify and expand the avairable software for the calculation of dose distributions of more complex treatment technique than common modalities. In this report, the results of modification and expansion of the available software for the calculation of dose distribution in the selective protection of the eye balls in moving field radiation treatment of the hypophysis were discribed. In this technique, the shadows of two absorbers always include the eye balls of the patient during rotation of the radiation source. However the position of the absorber relative to a effective beam is gradually and continuously changed. Dose calculation was carried out for 270° arc-therapy by superimposing 19 beams at 15 degrees intervals. Dose distributions and the doses at the rotation axis were compared between experiments and calculations. The calculated dose distribution agreed well with measured one at a higher dose region, and the differences at a lower dose region could, not lose the significance of clinical application.
社団法人日本放射線技術学会の論文
1981-05-01

治療計画用電算機による原体照射線量分布の計算 : 第一報打抜照射の線量分布計算

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治療計画用電算機による原体照射線量分布の計算 : 第一報 打抜照射の線量分布計算

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治療計画用電算機による原体照射線量分布の計算 : 第一報打抜照射の線量分布計算