According to an embodiment of the application, a method is provided for selecting an algorithm for correcting at least one image artifact in an image data record acquired by a medical imaging system and representing at least one region of interest of a subject under examination. The method includes identifying from the image data record at least one object element causing the image artifact and lying inside the region of interest of the subject under examination; determining from the image data record at least one characteristic describing the object element; determining an artifact correction algorithm on the basis of the at least one characteristic; and applying the artifact correction algorithm to the image data record. An embodiment of the application also provides a corresponding data processing facility and a medical imaging system.