1. A medical image analysis process which utilizes information contained in at least one medical image, the process comprising: deriving a quantitative evaluation including a difference between an ideal image unaffected by artefacts and the at least one medical image affected by artefacts; delivering the quantitative evaluation as an output, performing an error analysis in order to provide information relating to the accuracy of the quantitative evaluation, said analysis yielding a result, and, delivering the result as a further output.