Method for correction of distortion in image data records recorded by means of a magnetic resonance scanner, as well as a computer program, image processing unit and magnetic resonance scanner for carrying out the method

An image processing unit for correction of distortion in image data records which are recorded via a magnetic resonance scanner, wherein the magnetic resonance scanner has a measurement volume in which there is a basic magnetic field which has known local discrepancies from a nominal value, comprising:

• means for loading an image data record, recorded by the magnetic resonance scanner using known recording parameters;
• means for calculating local shifts of image elements in the loaded image data record from the known local discrepancies of the basic magnetic field and the known recording parameters;
• means for creating a corrected image data record on the basis of the calculated local shifts and the loaded image data record;
• and
• means for at least one of displaying and storing the corrected image data record.