Unconventional designs of RF probes for high-field MRI to enhance magnetic field uniformity

Navid P. Gandji, Bahram Seifi, Elena Semouchkina, Gangchea Lee, Seokwon Jung, Michael Lanagan, Thomas Neuberger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present approaches to enhancing magnetic field uniformity produced by RF probes in high-field Magnetic Resonance Imaging (MRI) scanners by introducing compensating non-uniformities in the probe designs. Unconventional designs of RF probes for operating at 600 MHz in 14 T MRI scanners are demonstrated, including a solenoid coil with non-uniform wrapping and dielectric separators, a system of microstrip patch antennas with substrates engineered by using high permittivity inserts, and a system of specifically shaped patch antennas. The advantages of the proposed probe designs are discussed.

Original languageEnglish (US)
Title of host publication2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781946815002
DOIs
StatePublished - Mar 13 2017
Event2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017 - Boulder, United States
Duration: Jan 4 2017Jan 7 2017

Publication series

Name2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017

Other

Other2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017
CountryUnited States
CityBoulder
Period1/4/171/7/17

Fingerprint

magnetic resonance
Microstrip antennas
Magnetic fields
patch antennas
probes
magnetic fields
scanners
microstrip antennas
Solenoids
inserts
separators
solenoids
Separators
nonuniformity
Permittivity
coils
permittivity
Magnetic Resonance Imaging
Substrates

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Instrumentation
  • Radiation

Cite this

Gandji, N. P., Seifi, B., Semouchkina, E., Lee, G., Jung, S., Lanagan, M., & Neuberger, T. (2017). Unconventional designs of RF probes for high-field MRI to enhance magnetic field uniformity. In 2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017 [7878296] (2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/USNC-URSI-NRSM.2017.7878296
Gandji, Navid P. ; Seifi, Bahram ; Semouchkina, Elena ; Lee, Gangchea ; Jung, Seokwon ; Lanagan, Michael ; Neuberger, Thomas. / Unconventional designs of RF probes for high-field MRI to enhance magnetic field uniformity. 2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017. Institute of Electrical and Electronics Engineers Inc., 2017. (2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017).
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abstract = "We present approaches to enhancing magnetic field uniformity produced by RF probes in high-field Magnetic Resonance Imaging (MRI) scanners by introducing compensating non-uniformities in the probe designs. Unconventional designs of RF probes for operating at 600 MHz in 14 T MRI scanners are demonstrated, including a solenoid coil with non-uniform wrapping and dielectric separators, a system of microstrip patch antennas with substrates engineered by using high permittivity inserts, and a system of specifically shaped patch antennas. The advantages of the proposed probe designs are discussed.",
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Gandji, NP, Seifi, B, Semouchkina, E, Lee, G, Jung, S, Lanagan, M & Neuberger, T 2017, Unconventional designs of RF probes for high-field MRI to enhance magnetic field uniformity. in 2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017., 7878296, 2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017, Institute of Electrical and Electronics Engineers Inc., 2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017, Boulder, United States, 1/4/17. https://doi.org/10.1109/USNC-URSI-NRSM.2017.7878296

Unconventional designs of RF probes for high-field MRI to enhance magnetic field uniformity. / Gandji, Navid P.; Seifi, Bahram; Semouchkina, Elena; Lee, Gangchea; Jung, Seokwon; Lanagan, Michael; Neuberger, Thomas.

2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017. Institute of Electrical and Electronics Engineers Inc., 2017. 7878296 (2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Gandji NP, Seifi B, Semouchkina E, Lee G, Jung S, Lanagan M et al. Unconventional designs of RF probes for high-field MRI to enhance magnetic field uniformity. In 2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017. Institute of Electrical and Electronics Engineers Inc. 2017. 7878296. (2017 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2017). https://doi.org/10.1109/USNC-URSI-NRSM.2017.7878296