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Journal articles on the topic 'Dual-Tuned RF coils'

Author: Grafiati
Published: 14 March 2023
Last updated: 31 July 2025

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1

Jeong, You-Jin, Suchit Kumar, Seon-Woo Park, et al. "Self-Isolated Dual-Mode High-Pass Birdcage RF Coil for Proton and Sodium MR Imaging at 7 T MRI." Applied Sciences 13, no. 24 (2023): 13227. http://dx.doi.org/10.3390/app132413227.

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This study presents the feasibility of a dual-mode high-pass birdcage RF coil to acquire MR images at both 1H and 23Na frequencies at ultra-high-field MR scanner, 7 T. A dual-mode circuit (DMC) in the dual-mode birdcage (DMBC) RF coil operates at two frequencies, addressing the limitations of sensitivity reduction and isolation between two frequencies as in traditional dual-tuned RF coil. Finite-difference time-domain (FDTD) based electromagnetic (EM) simulations were performed to verify the RF coil at each frequency on the three-dimensional human head model. The DMBC RF coil resonated at prot
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2

Wang, Wei, Kewen Liu, Xinjie Liu, et al. "Development of a 7T 1H/2H dual-tuned transceiver separation active decoupler MRI probe." Journal of Physics: Conference Series 2524, no. 1 (2023): 012015. http://dx.doi.org/10.1088/1742-6596/2524/1/012015.

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Abstract Based on the current deuterium metabolism imaging (DMI) technology analysis, a design scheme of a dual-core imaging coil suitable for a 7T MRI system is proposed. The size and structure of the shield layer are optimized. Based on the single-layer shield structure, a double-layer shield structure is proposed to improve the stability of the probe. A detuning circuit is added to the 2H transmitting and receiving coils so that they can work in time for better decoupling. According to the design scheme, the 1H/2H dual-core imaging coil was fabricated and applied to the 7T magnetic resonanc
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3

Abuelhaija, Ashraf, and Gameel Saleh. "Dual tuned 1H/31P quadrature microstripline-based transmit/receive switch for 7 Tesla magnetic resonance imaging." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 3 (2022): 2177. http://dx.doi.org/10.11591/ijece.v12i3.pp2177-2183.

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<p><span>A dual tuned transmit/receive (T/R) Switch for 7 tesla magnetic resonance imaging</span> (MRI) that is based on concentric microstripline (MSL) coupler is introduced. The proposed switch is designed using two concentric MSL quadrature couplers on the top and bottom faces of the switch. The switch can be used to handle two frequency signals to/from two radio frequency (RF) coils. In this article, a 1H/31P atomic nuclei are excited. The two MSLs on the upper face of the switch are designed to transmit 298 and 120.6 MHz signals into RF coils, whereas each of the identic
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4

Ashraf, Abuelhaija, and Saleh Gameel. "Dual tuned 1H/31P quadrature microstripline-based transmit/receive switch for 7 Tesla magnetic resonance imaging." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 3 (2022): 2177–83. https://doi.org/10.11591/ijece.v12i3.pp2177-2183.

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A dual tuned transmit/receive (T/R) Switch for 7 tesla magnetic resonance imaging (MRI) that is based on concentric microstripline (MSL) coupler is introduced. The proposed switch is designed using two concentric MSL quadrature couplers on the top and bottom faces of the switch. The switch can be used to handle two frequency signals to/from two radio frequency (RF) coils. In this article, a 1H/31P atomic nuclei are excited. The two MSLs on the upper face of the switch are designed to transmit 298 and 120.6 MHz signals into RF coils, whereas each of the identical u
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5

Zongdao, Li, and Yang Yizhen. "A review for the emerging technology of double tuned single structure MRI coil." American Journal of Advanced Research 4, no. 2 (2021): 17–25. https://doi.org/10.5281/zenodo.4663485.

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With the expanding accessibility of ultrahigh field MRI frameworks, researching on non-proton nuclei (X-nuclei), such as 23Na and 31P, have attracted wide attention. There are varieties of possibilities for in-depth study of this substance: firstly, it may shed light on cellular processes and energy metabolism in the field of biological tissues. Secondly, based on the first factor, it assists us to link pathological conditions to neurodegenerative diseases by displaying the nucleus. During the research, it has been found that this substance requires a well-designed radio frequency (RF) system
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6

Maunder, Adam, Madhwesha Rao, Fraser Robb, and Jim M. Wild. "Comparison of MEMS switches and PIN diodes for switched dual tuned RF coils." Magnetic Resonance in Medicine 80, no. 4 (2018): 1746–53. http://dx.doi.org/10.1002/mrm.27156.

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7

MOMIYAMA, Naoto, Tomoyuki HAISHI, and Yasuhiko TERADA. "Development of Single-Port <sup>1</sup>H/<sup>23</sup>Na Dual-Tuned RF Coils for 9.4 T Vertical-Bore MRI [Presidential Award Proceedings]." Japanese Journal of Magnetic Resonance in Medicine 44, no. 3 (2024): 119–22. http://dx.doi.org/10.2463/jjmrm.2023-1807.

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8

Villa-Valverde, P., I. Rodriguez, D. Padro, M. Benito, CE Garrido-Salmon, and J. Ruiz-Cabello. "A dual H-1/F-19 birdcage coil for small animals at 7T MRI." Magnetic Resonance Materials in Physics, Biology and Medicine 32, no. 1 (2019): 87–79. https://doi.org/10.1007/s10334-018-00733-z.

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ObjectiveGiven 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 (H-1 and F-19) or as transmitter-only double-tuned coil. Materials and methodsA high-pass eight-element birdcage coil was built for H-1 and F-19 for a 7T 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 workben
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9

Han, Sang-Doc, Junghyun Song, Daniel Hernandez, and Kyoung-Nam Kim. "Dual-Tuned Monopole/Loop Coil Array for Concurrent RF Excitation and Reception Capability for MRI." Journal of the Korean Physical Society 75, no. 8 (2019): 610–16. http://dx.doi.org/10.3938/jkps.75.610.

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10

Ha, Seunghoon, Mark J. Hamamura, Orhan Nalcioglu, and L. Tugan Muftuler. "A PIN diode controlled dual-tuned MRI RF coil and phased array for multi nuclear imaging." Physics in Medicine and Biology 55, no. 9 (2010): 2589–600. http://dx.doi.org/10.1088/0031-9155/55/9/011.

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11

Han, Sang-Doc, Phil Heo, Han-Joong Kim, et al. "Double-layered dual-tuned RF coil using frequency-selectable PIN-diode control at 7-T MRI." Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering 47B, no. 4 (2017): e21363. http://dx.doi.org/10.1002/cmr.b.21363.

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12

Kim, Jung-Hwan, Chan Hong Moon, Bum-Woo Park, Alessandro Furlan, Tiejun Zhao, and Kyongtae T. Bae. "Multichannel transceiver dual-tuned RF coil for proton/sodium MR imaging of knee cartilage at 3 T." Magnetic Resonance Imaging 30, no. 4 (2012): 562–71. http://dx.doi.org/10.1016/j.mri.2011.12.011.

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13

Ianniello, Carlotta, Guillaume Madelin, Linda Moy, and Ryan Brown. "A dual‐tuned multichannel bilateral RF coil for 1 H/ 23 Na breast MRI at 7 T." Magnetic Resonance in Medicine 82, no. 4 (2019): 1566–75. http://dx.doi.org/10.1002/mrm.27829.

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14

Li, Nan, Qiaoyan Chen, Chao Luo, et al. "Investigation of a Dual-Tuned RF Coil Array Decoupled Using ICE Technique for 1H/19F MR Imaging at 3T." IEEE Transactions on Magnetics 56, no. 1 (2020): 1–4. http://dx.doi.org/10.1109/tmag.2019.2947322.

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15

Cochlin, LE, RSM Gomes, K. Clarke, and CA Carr. "25 An MRI Coil Dual-Tuned by RF Shielding for In-Vivo Detection of Fluorine Labelled Stem-Cells in a Rodent Model of Acute Myocardial Infarction." Heart 98, Suppl 3 (2012): A8. http://dx.doi.org/10.1136/heartjnl-2012-302951.025.

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16

Memhave, Tor Rasmus, Marco Deckers, Susann Boretius, Jens Gröbner, and Amir Moussavi. "A Custom‐Built, Cost‐Efficient Lithium‐7 Tx/Rx Coil for In Vivo 7Li Magnetic Resonance Imaging and Spectroscopy." NMR in Biomedicine 38, no. 5 (2025). https://doi.org/10.1002/nbm.70034.

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ABSTRACTX‐nuclei magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) are powerful tools for the in vivo investigation of metabolism. Most nuclei require a dedicated radio frequency (RF) coil for signal detection; however, RF coils are often expensive. Coupled with the need for experts to create RF coils, X‐nuclei MR measurements are often inaccessible to the general user. In this paper, we present cost‐efficient and easy to assemble 7Li RF coils that achieved comparable signal‐to‐noise ratios (SNRs) to their commercial counterpart. Our 7Li RF coils were built as single r
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17

Payne, Komlan, Yunkun Zhao, Aditya Ashok Bhosale, and Xiaoliang Zhang. "Dual-tuned Coaxial-transmission-line RF coils for Hyperpolarized 13C and Deuterium 2H Metabolic MRS Imaging at Ultrahigh Fields." IEEE Transactions on Biomedical Engineering, 2023, 1–10. http://dx.doi.org/10.1109/tbme.2023.3341760.

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18

Gudino, Natalia. "Adaptable Dual-Tuned Optically Controlled On-Coil RF Power Amplifier for MRI." IEEE Transactions on Biomedical Circuits and Systems, 2024, 1–10. http://dx.doi.org/10.1109/tbcas.2024.3403093.

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19

Gast, Lena V., Teresa Gerhalter, Matthias Türk, et al. "Determination of Tissue Potassium and Sodium Concentrations in Dystrophic Skeletal Muscle Tissue Using Combined Potassium (39K) and Sodium (23Na) MRI at 7 T." NMR in Biomedicine 38, no. 4 (2025). https://doi.org/10.1002/nbm.70009.

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ABSTRACTCombined 23Na/39K MRI at 7 T can highlight ion disturbances in skeletal muscle tissue. In this work, we investigated if the apparent tissue potassium concentration (aTPC) can be determined in fatty replaced muscles of patients with facio‐scapulo‐humeral muscular dystrophy (FSHD) and if it can provide additional information to the fat replacement and the apparent tissue sodium concentration (aTSC). The lower leg of 14 patients (six females, eight males; mean age 47.7 ± 14.0 years) with genetically confirmed FSHD and 11 healthy controls (four females, seven males; mean age 47.0 ± 14.0 ye
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