PURPOSE: Ultrasound (US) imaging offers advantages over other imaging modalities and has become the most widespread modality for many diagnostic and interventional procedures. However, traditional 2D US requires a long training period, especially to learn how to manipulate the probe. A hybrid interactive system based on mixed reality was designed, implemented and tested for hand-eye coordination training in diagnostic and interventional US. METHODS: A hybrid simulator was developed integrating a physical US phantom and a software application with a 3D virtual scene. In this scene, a 3D model of the probe with its relative scan plane is coherently displayed with a 3D representation of the phantom internal structures. An evaluation study of the diagnostic module was performed by recruiting thirty-six novices and four experts. The performances of the hybrid (HG) versus physical (PG) simulator were compared. After the training session, each novice was required to visualize a particular target structure. The four experts completed a 5-point Likert scale questionnaire. RESULTS: Seventy-eight percentage of the HG novices successfully visualized the target structure, whereas only 45 % of the PG reached this goal. The mean scores from the questionnaires were 5.00 for usefulness, 4.25 for ease of use, 4.75 for 3D perception, and 3.25 for phantom realism. CONCLUSIONS: The hybrid US training simulator provides ease of use and is effective as a hand-eye coordination teaching tool. Mixed reality can improve US probe manipulation training.
|Autori interni:||FERRARI, MAURO|
|Autori:||C. Freschi;S. Parrini;N. Dinelli;M. Ferrari;V. Ferrari|
|Titolo:||Hybrid simulation using mixed reality for interventional ultrasound imaging training|
|Anno del prodotto:||2014|
|Appare nelle tipologie:||1.1 Articolo in rivista|