| 摘要 |
Discrepancies in alignment between an X-ray CT apparatus and an apparatus for radiation therapy are to be corrected. A phantom for alignment correction (P) is imaged, and data for alignment correction for conversion of data (x, y, z) of the coordinates of the X-ray CT apparatus ( 100 ) into data (X, Y, Z) of the coordinates of the apparatus for radiation therapy ( 200 ) are produced. Then, the data in the coordinates of the X-ray CT apparatus ( 100 ) obtained by imaging the subject with the X-ray CT apparatus ( 100 ) are converted into data in the coordinates of the apparatus for radiation therapy ( 200 ).
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