RT Journal Article
T1 A dual 1H/19F birdcage coil for small animals at 7 T MRI
A1 Palmira Villa Valverde, 
A1 Rodríguez Ramírez De Arellano, Ignacio
A1 Daniel Padró, 
A1 Marina Benito, 
A1 Carlos Ernesto Garrido Salmón, 
A1 Ruiz-Cabello Osuna, Jesús
AB Objective: Given the growing interest in fluorine, it is necessary to develop new multi-tuned RF coils. Therefore, our objective is to design a simple and versatile double-tuned RF coil that can be used as a transmitter and receiver double-tuned coil (1H and 19F) or as transmitter-only double-tuned coil.Materials and methods: A high-pass eight-element birdcage coil was built for 1H and 19F for a 7 T scanner. PIN diodes and cable traps to block unwanted common mode currents in cables were introduced to confer more flexibility to the coil. S-parameters and quality factor were measured in workbench and signal to noise ratio as well as signal intensity profiles in imaging experiments.Results: Bench measurements show S11 values less than - 33 dB, S21 lower than - 13 dB and quality factors ratio of the order of 1.8 that are in agreement with good performances of a RF coil, as well as values of - 39 dB for 19F and - 30 dB for 1H as good detuning values. Signal intensity profiles prove excellent homogeneity at 1H and 19F.Discussion: We present a simple structure of a double-tuned high-pass birdcage coil tuned to 1H and 19F that shows a great uniformity and sensitivity for 19F.
PB SpringerLink
YR 2019
FD 2019
LK https://hdl.handle.net/20.500.14352/133572
UL https://hdl.handle.net/20.500.14352/133572
LA eng
NO Villa-Valverde P, Rodríguez I, Padró D, et al. A dual 1H/19F birdcage coil for small animals at 7 T MRI. Magn Reson Mater Phy 2019;32:79–87. https://doi.org/10.1007/s10334-018-00733-z
NO Ministerio de Economía, Industria y Competitividad (España)
NO Comunidad de Madrid
NO European Commission
DS Docta Complutense
RD 17 mar 2026