| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiographic apparatus of a C arm type which can accurately overlap a blood vessel image with a live image.SOLUTION: There are two factors for mutual positional deviation between a live image and a blood vessel image. The two factors are a phantom deviation being a positional deviation between a reference point and a rotation center at the time of stereoscopic image generation shown by a phantom ph and a detector deviation indicating the degree of a deviation of an FPD 4 actually attached to a C arm 7 with respect to the rotation center. When these phantom deviation and detector deviation are obtained once, the deviation degree of the images can be easily predicted even if the C arm is rotated to any angle. |
