X-ray diagnostic apparatus for tomosynthesis having a detector that detects positional relationships

An X-ray diagnostic apparatus for tomosynthesis, comprising:

• a radiation transmitter and a radiation receiver provided for generating tomosynthesis recordings of an object under examination, said radiation transmitter and said radiation receiver being adjustably mounted such that, when the object under examination is transilluminated from different directions, signals are derived at said radiation receiver for each of the directions;
• an image-generating device receiving the signals in order to calculate a tomosynthesis recording of the object under examination;
• at least one position detector provided for registering, as position signals, a positional relationship between at least one of (i) said radiation transmitter and said radiation receiver, (ii) said radiation transmitter and the object under examination, and (iii) said radiation receiver and the object under examination, said position detector being arranged on at least one of said radiation transmitter, said radiation receiver, and the object under examination;
• and
• an evaluation device provided for evaluating the position signals from said position detector, and for generating correction signals if the positional relationship deviates from a desired relationship;
• whereby the correction signals are supplied from said evaluation device to said image-generating device.