Multi-colored 3D printed anatomical models depicting various anatomical regions of interest may be printed using a variety of 3D printing technologies including polyjet, binder jetting, stereolithography (SLA), and fused deposition modeling. The reliability of these technologies to accurately impart the anatomy of interest is unknown. Furthermore, the cost of creating anatomical models has not been explored in depth. In this study, patient-specific 3D urological cancer models were created from magnetic resonance imaging data (n=10). Models were prepped for printing and each model was printed twice, first with polyjet (Stratasys J750) and second with SLA (Formlabs Form2) technologies. Build preparation, model accuracy, printing time, post-processing time, and material cost were compared for the two technologies. Accuracy, defined by the degree of agreement between the dimensions of the printed model and the dimensions in the designed model, was measured by digitizing the printed models. Preference for model type was also assessed by two urologists.
- Understand how to process anatomical models specific to intended 3D printing hardware.
- Be aware of model cost, accuracy, printing times, and post-processing times for different 3D printing technologies.