An invention is described wherein a medical image analysis process which utilizes information contained in at least one medical image and in which a quantitative evaluation is derived from the medical image analysis process and delivered as an output, also delivers as an output the result of an error analysis, performed in order to provide information relating to the accuracy of the quantitative evaluation. This error analysis may be based on an evaluation of the artifacts which have an effect on the image. This error analysis may also be based on an evaluation of the imaging processes which have an effect on the image.