The goal of this trial is to compare the evaluation of 3D liver models visualised as holograms with HoloLens 2 and on digital PDF files in HPB surgical trainees. The main questions it aims to answer are: * Do the holographic models allow a superior accuracy in terms of anatomical evaluation and surgical planning? * Is there any difference in terms of time consumed and Task Load Index? Participants will analyse cases through both modalities and answer a questionnaire.
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Diagnostic and planning accuracy
Timeframe: Immediately after completing the evaluation