Measuring RF currents induced in implants using B1 + maps

In the presence of conductive implants, the B1+ field presents distortions generated by induced RF currents, which can be linked to the expected SAR. We fitted a theoretical model of the induced B1+ distortions to experimental B1 data obtained in an ASTM phantom to measure the current in a conducting wire. This indirect measurement of wire current was compared to EM simulations in a numerical model. This work may lead to methods allowing rapid evaluation of the RF safety of conductive wire in a given configuration.

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.

Click here for more information on becoming a member.