Meeting Banner
Abstract #5278

A 3T Helmholtz coil with either reduced or maximized radiation damping effects

Roland Müller1, Niklas Wallstein1, André Pampel1, and Harald E. Möller1
1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany

Synopsis

Keywords: Non-Array RF Coils, Antennas & Waveguides, Ex-Vivo Applications, Tiltable RF Coil, Radiation DampingRadiation damping (RD) effects may confound experiments targeted at the quantification of MR contrast parameters, in particular, in experiments in small ex-vivo specimens performed with dedicated coils supporting a high filling factor. To address this problem, a long-known principle during reception with coil arrays (preamplifier decoupling) was also applied in the transmit branch of the TxRx switch. Furthermore, adding an extra λ/4 cable between coil and TxRx switch allows to switch between minimum and maximum RD with otherwise almost equal coil characteristics. This may be further exploited for for testing pulse sequences with regards to potential RD effects.

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.

Keywords