| 摘要 |
PURPOSE:To always obtain an image that is free from a center position error by setting the center position of a tomographic image with use of a fluoroscopic image having >=2 directions. CONSTITUTION:When a 2-dimensional tomographic image or a 3-dimensional image is reformed, the reformation center surface are designated onto plural fluoroscopic images obtained in two directions A and B orthogonal to each other. Then a center point O or a center line of a desired reformed image is decided based on the intersecting line set between those designated center point or center line. In other words, an intersecting center position between an A-direction image center line 14 set on an image center surface viewed from the direction of an arrow A and a B-direction image center line 15 set on an image center surface viewed from the direction of an arrow B is decided. Thus it is possible to follow a desired center position even in the measurement of a bent area especially in the continuous magnified measurement. Then an image free from an error of a center position is always obtained in a simple way. |
