Evidence map›Paper›PMID 34240759›Full record

ArticleMagnetic resonance in medicine2021

Safety and imaging performance of two-channel RF shimming for fetal MRI at 3T.

Filiz Yetisir, Esra Abaci Turk, Bastien Guerin, Borjan A Gagoski, P Ellen Grant, Elfar Adalsteinsson, Lawrence L Wald

Abstract read
In one paragraph

Article in Magnetic resonance in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Fetal MRI: Radiofrequency Safety Assessment at 3 Tesla.Journal of magnetic resonance imaging : JMRI · 2025
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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

7 authors.

Filiz YetisirFetal-Neonatal Neuroimaging & Developmental Science Center, Boston Children's Hospital, Boston, Massachusetts, USA.ORCID 0000-0002-3100-1159
Esra Abaci TurkFetal-Neonatal Neuroimaging & Developmental Science Center, Boston Children's Hospital, Boston, Massachusetts, USA.ORCID 0000-0003-0246-8793
Bastien GuerinAthinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.
Borjan A GagoskiFetal-Neonatal Neuroimaging & Developmental Science Center, Boston Children's Hospital, Boston, Massachusetts, USA.ORCID 0000-0003-3777-2621
P Ellen GrantFetal-Neonatal Neuroimaging & Developmental Science Center, Boston Children's Hospital, Boston, Massachusetts, USA.
Elfar AdalsteinssonHarvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts, USA.
Lawrence L WaldAthinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

Funding

Genetic Analysis and Manipulation Core (GAEC)P50HD105351 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI Hisashi Umemori · 2021 to 2026
$9.4M
Advanced Fetal ImagingR01EB017337 · NIBIB · BOSTON CHILDREN'S HOSPITAL · PI ADALSTEINSSON, ELFAR, GRANT, PATRICIA ELLEN · 2014 to 2018
$6.2M
Parallel Excitation Methods for High Field MRIR01EB006847 · NIBIB · MASSACHUSETTS GENERAL HOSPITAL · PI WALD, LAWRENCE L · 2007 to 2020
$5.4M
Noninvasive Realtime Assessment of Placental Structure and Function with Novel MR Imaging MethodsU01HD087211 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI GRANT, PATRICIA ELLEN, WALD, LAWRENCE L · 2015 to 2015
$4.9M
Novel MRI Assessment of Placental Structure and Function Throughout PregnancyR01HD100009 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI ADALSTEINSSON, ELFAR, GRANT, PATRICIA ELLEN · 2019 to 2023
$3.6M
NIBIB NIH HHS R01 EB006847NIBIB NIH HHS R01 EB017337NICHD NIH HHS P50 HD105351NICHD NIH HHS R01 HD100009NICHD NIH HHS U01 HD087211
6 · The paper itself

Abstract

purposeThis study investigates whether two-channel radiofrequency (RF) shimming can improve imaging without increasing specific absorption rate (SAR) for fetal MRI at 3T.

methodsTransmit field (

resultsA region of subject-specific RF shim parameter space improving both

conclusionRF shimming can improve imaging compared with birdcage mode without increasing fetal and maternal SAR when a patient-specific SAR model is incorporated into the shimming procedure.

Indexed as

Magnetic Resonance ImagingRadio WavesFemaleFetusHumansPhantoms, ImagingPregnancyfetal magnetic resonance imaging (MRI)parallel transmission (pTx)pregnant body modelsradiofrequency (RF) shimmingradiofrequency safety

Identifiers

PMID34240759
PMCPMC8530882

What OpenQuestion holds

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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.