| Literature DB >> 25706501 |
Jiaming Cui, John C Bosshard, Joseph V Rispoli, Ivan E Dimitrov, Sergey Cheshkov, Mary Preston McDougall, Craig Malloy, Steven M Wright.
Abstract
In high-field magnetic resonance imaging, the radio frequency wavelength within the human body is comparable to anatomical dimensions, resulting in B1 inhomogeneity and nonuniform sensitivity patterns. Thus, this relatively short wavelength presents engineering challenges for RF coil design. In this study, a bilateral breast coil for (1)H imaging at 7 T was designed and constructed using forced-current excitation. By forcing equal current through the coil elements, we reduce the effects of coupling between the elements to simplify tuning and to ensure a uniform field across both breasts. To combine the benefits of the higher power efficiency of a unilateral coil with the bilateral coverage of a bilateral coil, a switching circuit was implemented to allow the coil to be reconfigured for imaging the left, right, or both breasts.Entities:
Mesh：
Year: 2015 PMID： 25706501 PMCID： PMC4626209 DOI： 10.1109/TBME.2015.2403850
Source DB: PubMed Journal: IEEE Trans Biomed Eng ISSN： 0018-9294 Impact factor: 4.538