1. A method for generating medical image data records of an examination object, comprising: operating a magnetic resonance scanner, while an examination object is situated in the magnetic resonance scanner, to acquire raw magnetic resonance data from the examination object; providing a computer with a reconstruction algorithm that reconstructs a medical image data record from the data and using a value of a physiological parameter; providing said raw magnetic resonance data acquired from the examination object to said computer and, in said computer, generating at least two medical image data records by applying said reconstruction algorithm at least twice to the raw magnetic resonance data and using a different virtual value of said physiological parameter respectively to generate said at least two medical image data records; and making said at least two medical image data records available in electronic form at an output of said computer.