Keywords: Safety, Phantoms, Other Preclinical
Motivation: The current state-of-the-art for assessing RF-induced heating of orthopedic devices is limited.
Goal(s): Validate modified ASTM F2182 computational models to identify key factors affecting heating of devices implanted in bone, enhancing predictive capabilities compared to experimental techniques.
Approach: A titanium rod was assessed for RF-induced heating in gelled saline with and without surrounding bone both experimentally and computationally. Varying bone geometries and material distributions were utilized in the simulations.
Results: High-fidelity geometry models with both cortical bone and bone marrow best predicted temperature rise, demonstrating the importance of appropriate geometry and material properties for accurate predictions of heating.
Impact: This study enhances MR safety assessments, showing that high-fidelity computational models can accurately predict RF-induced heating surrounding implants in bone while underscoring the dependence of temperature rise on the geometry and material properties of the media adjacent to the devices.
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