System and SAR characterization in parallel RF transmission

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Yudong ZhuDaniel K Sodickson

Abstract

The markedly increased degrees of freedom introduced by parallel radiofrequency transmission presents both opportunities and challenges for specific absorption rate (SAR) management. On one hand they enable E-field tailoring and SAR reduction while facilitating excitation profile control. On other hand they increase the complexity of SAR behavior and the risk of inadvertently exacerbating SAR by improper design or playout of radiofrequency pulses. The substantial subject-dependency of SAR in high field magnetic resonance can be a compounding factor. Building upon a linear system concept and a calibration scheme involving a finite number of in situ measurements, this work establishes a clinically applicable method for characterizing global SAR behavior as well as channel-by-channel power transmission. The method offers a unique capability of predicting, for any excitation, the SAR and power consequences that are specific to the subject to be scanned and the MRI hardware. The method was validated in simulation and experimental studies, showing promise as the foundation to a prospective paradigm where power and SAR are not only monitored but, through prediction-guided optimization, proactively managed.

References

Dec 1, 1991·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·J R KeltnerT F Budinger
Dec 5, 1998·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·C M CollinsM B Smith
Jan 2, 2003·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ulrich KatscherJohan S van den Brink
Apr 6, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Yudong Zhu
Aug 9, 2006·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·William GrissomDouglas C Noll
Apr 3, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·K SetsompopE Adalsteinsson
Jan 24, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Riccardo LattanziYudong Zhu
Feb 4, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Xu ChuYudong Zhu
Apr 9, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·David O Brunner, Klaas P Pruessmann
Jun 27, 2009·Journal of Magnetic Resonance Imaging : JMRI·Bob van den BergenJan J W Lagendijk
Feb 11, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Kay Nehrke, Peter Börnert
May 1, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·David O Brunner, Klaas P Pruessmann
Oct 30, 2010·Journal of Magnetic Resonance Imaging : JMRI·Martijn Anton CloosNicolas Boulant
Dec 3, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daeho LeeJohn M Pauly

❮ Previous
Next ❯

Citations

Mar 11, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Matthew C RestivoHans Hoogduin
Jan 10, 2016·Magnetic Resonance Imaging·Francesco PadormoJoseph V Hajnal
Dec 4, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ingmar GraesslinSteffen Weiss
Jun 21, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Cem Murat DenizYudong Zhu
Jun 21, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Leeor AlonYudong Zhu
Mar 19, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Shaihan J MalikJoseph V Hajnal
Apr 23, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zhipeng CaoChristopher M Collins
Jun 12, 2013·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ozlem IpekCornelis A T van den Berg
Oct 18, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Andre KuehneElmar Laistler
Jul 23, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Cem M DenizYudong Zhu
May 21, 2015·NMR in Biomedicine·Francesco PadormoShaihan J Malik
Aug 1, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zohaib MahmoodLuca Daniel
Aug 27, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ingmar GraesslinUlrich Katscher
Jul 22, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Yu ShaoShumin Wang
Aug 15, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Francesco PadormoJoseph V Hajnal
Sep 9, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Stephan OrzadaAndreas K Bitz
May 5, 2017·Journal of Applied Clinical Medical Physics·Youngseob Seo, Zhiyue J Wang
Feb 2, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zhipeng CaoWilliam A Grissom
Nov 14, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zhipeng CaoWilliam A Grissom
Jun 13, 2019·Topics in Magnetic Resonance Imaging : TMRI·Cem M Deniz
Jun 4, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ettore Flavio MeliadòAlexander J E Raaijmakers
Dec 3, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Cem Murat DenizYudong Zhu
Jul 30, 2020·NMR in Biomedicine·Ioannis P GeorgakisRiccardo Lattanzi
Aug 19, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Xianglun MaoJoseph V Rispoli
May 3, 2016·Concepts in Magnetic Resonance. Part B, Magnetic Resonance Engineering·Leeor AlonChristopher M Collins
Nov 24, 2012·Physics in Medicine and Biology·Jin JinStuart Crozier
Mar 25, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Gang ChenGraham C Wiggins
May 14, 2016·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Matthew RestivoHans Hoogduin
Jul 1, 2020·Magma·Alireza Sadeghi-TarakamehErgin Atalar
Dec 23, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ettore Flavio MeliadòAlexander J E Raaijmakers
Feb 27, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Stephan OrzadaMark E Ladd
Jul 4, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Stephan OrzadaMark E Ladd
Jul 22, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Felipe GodinezShaihan J Malik

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
I GraesslinUlrich Katscher
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Cem Murat DenizYudong Zhu
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Florent EggenschwilerJosé P Marques
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Riccardo LattanziYudong Zhu
Journal of Magnetic Resonance Imaging : JMRI
Frank SeifertHerbert Rinneberg
© 2021 Meta ULC. All rights reserved