| 摘要 |
<p>The present invention relates to positioning of an X ray source. In order to provide an improved user interface for facilitating the X ray imaging positioning a transportable handheld planning device (10) for visualizing projected X ray radiation for medical X ray imaging is provided that comprises a first structure (12) for representing a central axis (14) of a projected X ray radiation (16) and a second structure (18) for representing a cross sectional area (20) of the projected X ray radiation. The first structure is manually positionable by a user in relation to an object to be examined. The second structure is adjustable by a user such that the size and proportions of the cross sectional area are adjustable in relation to the object to be examined. Further a current spatial position of the first structure and a current size and proportions of the cross sectional area are detectable by a measurement arrangement (22).</p> |
