METHOD FOR THE COMPUTER-ASSISTED DETERMINATION OF THE POSITION, RELATIVE TO AN X-RAY DEVICE, OF A VERTEBRAL COLUMN SECTION PICTURED ON AN X-RAY IMAGE

摘要

The invention relates to a method for the computer-assisted determination of the position of a section of a vertebral column (WS) pictured on an X-ray image, relative to an X-ray device (10) that was used to take said X-ray image. Data sets in a data bank each comprise image information concerning a two-dimensional reference-X-ray image (RB, RB') of a vertebral column part (60;70), the reference X-ray images (RB, RB') of the data sets differing from one another by virtue of the position of the vertebral column part (60; 70) relative to a first X-ray device (10') used to take the reference X-ray images (RB, RB'). Each data set additionally contains position information concerning the position of the vertebral column part (60; 70) relative to the first X-ray device (101) when the reference X-ray image (RB, RB') was being taken. By comparing a target X-ray image (ZB) or parts (BA') thereof to the image information stored in the data bank and relating to said reference X-ray images (RB; RB'), the position of the vertebral column section when the target X-ray image was being taken, relative to the X-ray device (10) that was used, is determined.