| 摘要 |
PROBLEM TO BE SOLVED: To provide a patient positioning system which can accurately perform positioning, even when an area containing a tumor in a patient's body is deformed by change in position of the patient or change in time, by reducing its effects on surrounding normal tissue.SOLUTION: A patient positioning method includes: a data acquisition step during the treatment planning period in which patient data during the treatment planning period as data of the patient at the time of treatment planning is acquired; a treatment planning step in which a treatment plan is made by using the patient data during the treatment planning period; a data acquisition step at the time of treatment in which patient data at the time of treatment as data of the patient at the time of treatment is acquired; a shape analysis step in which the shape of the patient during the treatment planning period and the shape of the patient at the time of treatment are compared and analyzed by the patient data during the treatment planning period and the patient data at the time of treatment; and a treatment table positioning step in which the shift amount of the treatment table is calculated on the basis of the result of comparison and analysis between the shape of the patient during the treatment planning period and the shape of the patient at the time of treatment in the shape analysis step to shift the treatment table. |
