| 摘要 |
<P>PROBLEM TO BE SOLVED: To start the collection of projection data from an optional tabletop position or a rotational angle. <P>SOLUTION: A collection start position determining part 43 determines the tabletop position at the scheduled starting time of collecting the projection data by a data collection circuit 21. A collection start angle determining part 39 determines a first rotational angle of an X-ray tube 13 at the scheduled collection starting time. An exposure start angle determining part 41 determines a second rotational angle of the X-ray tube 13 at the scheduled starting time of moving of a tabletop 25 on the basis of the determined first rotational angle and the time interval from the scheduled movement starting time to the scheduled collection starting time. A scan control part 47 controls a rotation driving part 17 in order to rotate the X-ray tube 13 around a subject, controls a tabletop moving part 27 so that the tabletop 25 begins to move when the X-ray tube 13 reaches the second rotational angle, and controls the data collection circuit 21 so as to begin to the collection of projection data when the tabletop 25 reaches the determined tabletop position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
