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

Le résumé fourni par la source

Radiation 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.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.