It is widely understood that the B1 field used in MRI can cause significant tissue heating by inducing eddy currents. Additionally, the B1 field simultaneously induces heating in all RF coils. Patient heating is indirectly constrained by SAR limits, as defined in IEC 60601-2-33, and the surface contact coil temperature limit (41°C) is defined by IEC 60601-1. An examination of the simultaneous application of both heating sources is investigated by electromagnetic and thermal modeling. Initial results suggest that while the presence of a “hot” coil elevates tissue temperatures, the two simultaneous sources of heating don’t pose a patient safety risk.
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