Conditional safety margins for less conservative peak local SAR assessment: A probabilistic approach.

SAR model library SAR model selection parallel transmit safety factor specific absorption rate subject-specific local SAR assessment

Journal

Magnetic resonance in medicine
ISSN: 1522-2594
Titre abrégé: Magn Reson Med
Pays: United States
ID NLM: 8505245

Informations de publication

Date de publication:
12 2020
Historique:
received: 22 01 2020
revised: 28 04 2020
accepted: 01 05 2020
pubmed: 4 6 2020
medline: 15 5 2021
entrez: 4 6 2020
Statut: ppublish

Résumé

The introduction of a linear safety factor to address peak local specific absorption rate (pSAR The conditional probability density function can be estimated from previously simulated data. A representative set of true and estimated pSAR Compared with the more conventional safety factor, the conditional safety-margin approach results in lower (up to 30%) mean overestimation for all investigated local SAR estimation methods. The proposed probabilistic approach for pSAR

Identifiants

pubmed: 32492249
doi: 10.1002/mrm.28335
pmc: PMC7540599
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

3379-3395

Informations de copyright

© 2020 The Authors. Magnetic Resonance in Medicine published by Wiley Periodicals LLC on behalf of International Society for Magnetic Resonance in Medicine.

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Auteurs

Ettore Flavio Meliadò (EF)

Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Computational Imaging Group for MR Diagnostics & Therapy, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands.
Tesla Dynamic Coils, Zaltbommel, The Netherlands.

Alessandro Sbrizzi (A)

Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Computational Imaging Group for MR Diagnostics & Therapy, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands.

Cornelis A T van den Berg (CAT)

Computational Imaging Group for MR Diagnostics & Therapy, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands.
Department of Radiotherapy, Division of Imaging & Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.

Bart R Steensma (BR)

Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Computational Imaging Group for MR Diagnostics & Therapy, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands.

Peter R Luijten (PR)

Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.

Alexander J E Raaijmakers (AJE)

Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Computational Imaging Group for MR Diagnostics & Therapy, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands.
Biomedical Image Analysis, Department Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.

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Classifications MeSH