Evidence map›Paper›PMID 37000320›Full record

ArticleMagma (New York, N.Y.)2023

Simulation-based evaluation of SAR and flip angle homogeneity for five transmit head arrays at 14 T.

Seb D Harrevelt, Thomas H M Roos, Dennis W J Klomp, Bart R Steensma, Alexander J E Raaijmakers

Open access · hybridAbstract read
In one paragraph

Article in Magma (New York, N.Y.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 5 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Seb D HarreveltDepartment of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands. s.d.harrevelt@tue.nl.ORCID http://orcid.org/0000-0001-8049-1898
Thomas H M RoosDepartment of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Dennis W J KlompDepartment of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Bart R SteensmaDepartment of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Alexander J E RaaijmakersDepartment of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
University Medical Center Utrecht · NLEindhoven University of Technology · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionVarious research sites are pursuing 14 T MRI systems. However, both local SAR and RF transmit field inhomogeneity will increase. The aim of this simulation study is to investigate the trade-offs between peak local SAR and flip angle uniformity for five transmit coil array designs at 14 T in comparison to 7 T.

methodsInvestigated coil array designs are: 8 dipole antennas (8D), 16 dipole antennas (16D), 8 loop coils (8D), 16 loop coils (16L), 8 dipoles/8 loop coils (8D8L) and for reference 8 dipoles at 7 T. Both RF shimming and k

resultsFor RF shimming, the 16L array performs best. For k DISCUSSION AND

conclusionFor most arrays and regular imaging, the constraint on head SAR is reached before constraints on peak local SAR are violated. Furthermore, the different drive vectors in k

Indexed as

Magnetic Resonance ImagingRadio WavesComputer SimulationPhantoms, Imaging14TCoil designsFlip angle homogeneitySAR assesmentSimulation study

Identifiers

PMID37000320
PMCPMC10140109
OpenAlexW4362459136

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.