| 摘要 |
PROBLEM TO BE SOLVED: To efficiently perform photographing by helical scanning which is synchronized with a body movement phase. SOLUTION: Projection data of multiple views by an X-ray is obtained concerning an object by helical scanning (101), a periodical signal concerning a body movement object is obtained (111), projection data and the periodical signal are stored at each view (103) and the tomographic image of the object in a predetermined phase within the period of the periodical signal is reconstituted based on projection data (105).
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