| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the quantity of computation and reconstruct the distribution of absorption of flat slices by vertically one dimensionally filtering measurement data in the plane view, by reconstructing the spatial distribution of absorption by back projecting the measurement data to be filtered of a plurality of groups. SOLUTION: When a feed motor 5 in the z direction stops and a motor 2 rotates only a gantry 1 individually, a radiation source S and a detector unit 16 perform a circular scanning movement to an examination zone 13. Measurement data captured by the detector unit 16 are given to an image processing computer 10, the image processing computer 10 reconstructs a part of an absorption distribution of the examination zone 13 from the measurement data, and displays this absorption distribution on a monitor 11 for example. The transfer of measurement data to the image processing computer 10 from the two motors 2 and 5, the image processing computer 10, the radiation source S and the detector unit 16 is controlled with a control unit 7.</p> |
