Universal Pulses for MRI at 9.4 Tesla: a Feasibility Study

C. Wiggins; B. Poser; F. Mauconduit; N. Boulant; V. Gras

doi:10.1109/ICEAA.2019.8879180

Universal Pulses for MRI at 9.4 Tesla: a Feasibility Study

C. Wiggins^*, B. Poser, F. Mauconduit, N. Boulant, V. Gras

^*Corresponding author for this work

Research output: Contribution to conference › Paper › Academic

Abstract

Magnetic Resonance Imaging (MRI) at higher magnetic fields (above 7 Tesla) suffers from radiofrequency field inhomogeneities that result in non-uniform transmission fields. The use of parallel transmission - transmitting on several antennas simultaneously, but with different waveforms can address this problem, but usually at a considerable cost due to the need to calibrate the RF pulses used on a per-subject basis. A recently developed concept - Universal Pulses, which have been calculated across a set of subjects - has been shown to produce uniform images with minimal setup times at 7 Tesla. Here we perform a feasibility study to see if the same approach is likely to bring benefits at 9.4 Tesla.

Original language	English
Pages	1185-1188
Number of pages	4
DOIs	https://doi.org/10.1109/ICEAA.2019.8879180
Publication status	Published - 1 Jan 2019
Event	2019 International Conference on Electromagnetics in Advanced Applications - Granada, Spain Duration: 9 Sept 2019 → 13 Sept 2019

Conference

Conference	2019 International Conference on Electromagnetics in Advanced Applications
Abbreviated title	ICEAA 2019
Country/Territory	Spain
City	Granada
Period	9/09/19 → 13/09/19

Keywords

array
homogeneity
mri
parallel transmission
rf
ARRAY
RF
MRI

Access to Document

10.1109/ICEAA.2019.8879180

Cite this

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title = "Universal Pulses for MRI at 9.4 Tesla: a Feasibility Study",

abstract = "Magnetic Resonance Imaging (MRI) at higher magnetic fields (above 7 Tesla) suffers from radiofrequency field inhomogeneities that result in non-uniform transmission fields. The use of parallel transmission - transmitting on several antennas simultaneously, but with different waveforms can address this problem, but usually at a considerable cost due to the need to calibrate the RF pulses used on a per-subject basis. A recently developed concept - Universal Pulses, which have been calculated across a set of subjects - has been shown to produce uniform images with minimal setup times at 7 Tesla. Here we perform a feasibility study to see if the same approach is likely to bring benefits at 9.4 Tesla.",

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author = "C. Wiggins and B. Poser and F. Mauconduit and N. Boulant and V. Gras",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 ; Conference date: 09-09-2019 Through 13-09-2019",

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doi = "10.1109/ICEAA.2019.8879180",

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AU - Boulant, N.

AU - Gras, V.

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AB - Magnetic Resonance Imaging (MRI) at higher magnetic fields (above 7 Tesla) suffers from radiofrequency field inhomogeneities that result in non-uniform transmission fields. The use of parallel transmission - transmitting on several antennas simultaneously, but with different waveforms can address this problem, but usually at a considerable cost due to the need to calibrate the RF pulses used on a per-subject basis. A recently developed concept - Universal Pulses, which have been calculated across a set of subjects - has been shown to produce uniform images with minimal setup times at 7 Tesla. Here we perform a feasibility study to see if the same approach is likely to bring benefits at 9.4 Tesla.

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