BEEEP: B1-robust Energy Efficient Excitation Pulses

6533b833fe1ef96bd129c99d

RESEARCH PRODUCT

BEEEP: B1-robust Energy Efficient Excitation Pulses

Eric Van Reeth Hélène Ratiney O. Beuf Soukaina Kanice Steffen Glaser Dominique Sugny

subject

[SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging

description

International audience; SynopsisThis study introduces a new family of broadband B1-robust excitation (90°) pulses for MRI with large enough bandwidth (+/- 1 kHz) to account forstatic field inhomogeneities, and minimal energy deposition. RF pulses are designed with a regularized optimal control algorithm, which is able toadapt the pulse B1-robustness range to fit the coil limits in terms of peak amplitude and energy. In vitro acquisitions using an endoluminal-shapedRF transmit coil show comparable excitation profiles than BIR4 pulses, although BEEEP pulses deposit 5.2 times less energy.https://index.mirasmart.com/ISMRM2019/PDFfiles/4623.html

year	journal	country	edition	language
2019-05-11

https://hal.archives-ouvertes.fr/hal-02130017

PEPhysical Sciences and Engineering
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- PE1Mathematics
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LSLife Sciences
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