Simplifying MR-guided focused ultrasound experiments by using the water bath as an intrinsic high mode dielectric resonator.

The standard setup for MR-guided FUS includes a transducer, water bath integrated into the patient table, and either a specialized RF coil placed close to the patient, or else the body coil is used as the receiver. However, the body coil has low sensitivity and a local RF coil can interfere with ultrasound irradiation. Here a completely new approach is presented in which an RF coil is not needed at all: the dimensions of the water bath are adjusted so that a high order dielectric mode is excited, resulting in efficient MR excitation and reception at the transducer focal point.

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.