Local heating effects in patients carrying orthopaedic implants have been studied mostly as a consequence of radiofrequency fields and, to a less extent, to gradient coil fields, separately. In this study the heating produced by the combined effects of both fields during realistic clinical sequences is numerically simulated in an anatomical human model carrying a CoCrMo hip implant. Risky situations have been identified, also showing that, sometimes, the gradient field heating can be most significant. The analysis suggests that criteria, based on whole-body SAR only, may not be sufficient to ensure patients’ safety.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords