1. A method of generating a three-dimensional image formation of a body part that is larger than a visual field of an X-ray machine, the method comprising the following steps: arranging an X-ray source and an X-ray detector at a first position such that the X-ray source and the X-ray detector record a first projection image of at least a first section of a body part; translating the X-ray source and the X-ray detector to a second position such that the X-ray source and the X-ray detector record a second projection image of at least a second section of the body part, wherein the second section partially overlaps the first section; and reconstructing a three-dimensional volume of the body part from a plurality of projection images including the first projection image and the second projection image using a tomosynthesis algorithm that uses the parallax effect to reconstruct the three-dimensional volume of the body part.