TY - JOUR
T1 - Method for determining matching capacitances for floating cable traps in magnetic resonance imaging up to 14 T
AU - Liu, Jinhao
AU - Wang, Miutian
AU - Sun, Zhen
AU - Wang, Yaohui
AU - Yang, Gang
AU - Wang, Weimin
AU - Wang, Qiuliang
N1 - Publisher Copyright:
© 2023 Elsevier Inc.
PY - 2024/1
Y1 - 2024/1
N2 - Floating cable traps (FCTs) enhance coil tuning, improve the signal-to-noise ratio of magnetic resonance imaging (MRI), and reduce the risks to patients. As MRI technology continues to advance, it becomes crucial to design efficient FCTs that are tailored to different magnetic fields and nuclei. Here, a method is proposed for determining and correcting the appropriate capacitances for FCTs in MRI systems. To validate the effectiveness of this approach, FCTs were designed and manufactured for hydrogen nuclei in magnetic fields of 1.5–14 T. The results of bench testing show that the attenuation of common-mode currents was more than −20 dB, and the maximum frequency deviation in all the FCTs was 0.345%. Furthermore, the results of magnetic resonance spin-echo imaging show that the signal-to-noise ratio was improved significantly by using the FCTs. Overall, this study shows the effectiveness of the designed FCTs in improving signal-to-noise ratio, and it provides valuable insights for designing efficient FCTs tailored to different magnetic fields and nuclei in MRI applications.
AB - Floating cable traps (FCTs) enhance coil tuning, improve the signal-to-noise ratio of magnetic resonance imaging (MRI), and reduce the risks to patients. As MRI technology continues to advance, it becomes crucial to design efficient FCTs that are tailored to different magnetic fields and nuclei. Here, a method is proposed for determining and correcting the appropriate capacitances for FCTs in MRI systems. To validate the effectiveness of this approach, FCTs were designed and manufactured for hydrogen nuclei in magnetic fields of 1.5–14 T. The results of bench testing show that the attenuation of common-mode currents was more than −20 dB, and the maximum frequency deviation in all the FCTs was 0.345%. Furthermore, the results of magnetic resonance spin-echo imaging show that the signal-to-noise ratio was improved significantly by using the FCTs. Overall, this study shows the effectiveness of the designed FCTs in improving signal-to-noise ratio, and it provides valuable insights for designing efficient FCTs tailored to different magnetic fields and nuclei in MRI applications.
KW - Floating cable trap (FCT)
KW - Magnetic resonance imaging (MRI)
KW - Matching capacitance
KW - Signal-to-noise ratio (SNR)
UR - https://www.scopus.com/pages/publications/85180371644
U2 - 10.1016/j.jmr.2023.107612
DO - 10.1016/j.jmr.2023.107612
M3 - 文章
C2 - 38118321
AN - SCOPUS:85180371644
SN - 1090-7807
VL - 358
JO - Journal of Magnetic Resonance
JF - Journal of Magnetic Resonance
M1 - 107612
ER -