| 摘要 |
<p>A medical X-ray system for examining body tissue comprises an X-ray source (18) configured to generate X-radiation (22), a detector (28) configured to detect X-radiation (22) that has passed through the body tissue, and a measuring device (32) configured to determine a reference direction, in particular the gravitational direction or a direction from which the gravitational direction can be derived. The measuring device comprises display means (40, 42; 56) that indicate the measured reference direction and that are arranged in the beam path between the X-ray source (18) and the detector (28) in such a manner that, upon transillumination of the body tissue with X-radiation (22), the display means (42; 56) are, together with the body tissue, projected onto the detector (28) and that the reference direction can be read off visually on an X-ray image formed on the detector (28).</p> |
