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Abstract #2634

Virtual precision surgery for mri implant safety

Oriano Bottauscio1, Alessandro Arduino1, Fabio Baruffaldi2, Mario Chiampi1, Jessica Martinez1, Umberto Zanovello1, and Luca Zilberti1
1Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica, Torino, Italy, 2IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy


In silico evaluation of heating during an MRI exam for patients with passive implants patients need detailed anatomical models to reproduce in vivo scenarios. A quantification of the influence of the model approximation is fundamental to define the main requirements of the digital model.Here, we analyze the impact of different model approximation in simulating RF and gradient-induced heating caused by orthopedic implants. It was found that, whereas the heating due to switched gradient fields does not strictly require the adoption of advanced virtual surgery, the heating caused by RF is strongly affected by the precision of the digital model.

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