| 摘要 |
A driver drives an X-ray tube and a flat panel X-ray detector synchronously to scan sectional planes to be imaged of an object under examination. A back projection unit projects projection data detected in varied scan positions to predetermined lattice points of a three-dimensional lattice virtually set to the region of interest of the object radiographed. An image reconstruction is carried out to generate three-dimensional volume data of the region of interest. The three-dimensional volume data of the region of interest is generated quickly without repeating a radiographic operation.
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