Comparing Saddle, Slotted-tube and Parallel-plate Coils for Magnetic Resonance Imaging

0429503 - ÚPT 2015 RIV SK eng J - Článek v odborném periodiku
Nešpor, D. - Bartušek, Karel - Dokoupil, Zdeněk
Comparing Saddle, Slotted-tube and Parallel-plate Coils for Magnetic Resonance Imaging.
Measurement Science Review. Roč. 14, č. 3 (2014), s. 171-176. ISSN 1335-8871. E-ISSN 1335-8871
Grant CEP: GA ČR GA13-09086S
Institucionální podpora: RVO:68081731
Klíčová slova: MRI measurements * RF coils * homogeneity of B1 * numerical analysis
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 0.989, rok: 2014

The paper is concerned with a comparison of the properties of RF coils of three configurations for MRI measurements on small animals. In comparison with the classical saddle coil the proposed modification of slotted-tube coil exhibits identical homogeneityof B1 field in a larger space. The parallel-plate coil has a satisfactory homogeneity of B1 field over the whole internal space. The signal-to-noise ratio measured for all three coils is roughly the same and is given by the magnitude of RF pre-amplifier noise. As the slotted-tube and parallel-plate coils have a lower inductance compared with the saddle coil, they can be tuned to resonance on the 200 MHz frequency even at larger dimensions. The results show that the parallel-plate coil has very good properties for the measurement of small animals.
Trvalý link: http://hdl.handle.net/11104/0234633