An analytical, closed-form solution for the electric field induced inside an ellipsoidal conductor by time-varying gradients in MRI was developed. We applied the method to calculate the electric field for an ellipsoid centered on the isocenter having the semi-axis lengths 20 cm, 15 cm, and 40 cm in LR, AP, and SI directions. We observed that, due to the geometry, ramping up on the Y-axis resulted in the highest electric field intensity. Furthermore, we found that, when the ellipsoid is shifted in the SI direction, the electric field intensity increases approximately 100%.
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