Fig. 4

Medical 3D-printing process for the production of patient specific anatomical models and its errors. In addition to the steps of the process shown in Fig. 2, the intermediate results are also shown. The arrows indicate which of the intermediate process results are compared to determine the respective main types of error, including the differentiation of combined and partial errors. Highlighted with blue box: Errors that should be evaluated individually according to the guidelines of the RSNA for medical 3D-printing [13]. SegE: Segmentation Error, DEE: Digital Editing Error, PrE: Printing Error, IAE: Image Acquisition Error, SegC: Segmentation Comparison Error. PrE: most frequently evaluated partial error, SegE+DEE + PrE: most frequently evaluated combined error