Abstract: Arranged in an examination room is a CT installation which can travel along a predetermined travel path between two installation limit positions. Arranged on the CT installation is a telescopic rod, which extends from a hinge point that is proximal with respect to the CT installation to a hinge point that is distal with respect to the CT installation. The telescopic rod is rotatably mounted in the two hinge points, and can telescope between a minimum length and a maximum length. Arranged on the telescopic rod (6) are a number of retaining elements that can travel along the telescopic rod. A number of lines are guided via the retaining elements, so that when the telescopic rod is of minimum length, the lines are guided in serpentine loops.