| 摘要 |
This radiation-therapy simulation apparatus (1) is provided with a calculation unit (5), a correction unit (6), and a storage unit (7). The calculation unit (5) calculates, in advance, for a plurality of irradiation conditions, the radiation-dose distributions (D0) when a standard model of the human body is irradiated with particles. The storage unit (7) stores data related to the radiation-dose distributions (D0). An operator inputs, into the radiation-therapy simulation apparatus (1), irradiation conditions and patient-body-type information (M1). The correction unit (6) calculates (S4) a conversion matrix indicating the conversion required to match body-type information (M0) related to the standard model of the human body, with the patient-body-type information (M1). The correction unit (6) extracts, from the storage unit (7), data related to the radiation-dose distribution (D0) calculated under irradiation conditions corresponding to the inputted irradiation conditions. The correction unit (6) calculates (S6) a corrected radiation-dose distribution (D1) by converting the radiation-dose distribution (D0) in accordance with the conversion matrix. According to this radiation-therapy simulation apparatus (1), an increase in calculation time is inhibited. |
