Evidence map›Paper›PMID 31066109›Full record

ArticleMagnetic resonance in medicine2019

Toward "plug and play" prospective motion correction for MRI by combining observations of the time varying gradient and static vector fields.

Adam van Niekerk, Andre van der Kouwe, Ernesta Meintjes

Open access · greenAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
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  6. MP-RAVE: IR-Prepared TMagnetic resonance in medicine · 2023
    Article
  7. Article
  8. External Hardware and Sensors, for Improved MRI.Journal of magnetic resonance imaging : JMRI · 2023
    Review
  9. Article
  10. Article
  11. Article
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

3 authors at 3 institutions in 2 countries.

Adam van NiekerkUCT Medical Imaging Research Unit, Division of Biomedical Engineering, Faculty of Health Sciences, Department of Human Biology, University of Cape Town, Cape Town, South Africa.
Andre van der KouweUCT Medical Imaging Research Unit, Division of Biomedical Engineering, Faculty of Health Sciences, Department of Human Biology, University of Cape Town, Cape Town, South Africa.
Ernesta MeintjesUCT Medical Imaging Research Unit, Division of Biomedical Engineering, Faculty of Health Sciences, Department of Human Biology, University of Cape Town, Cape Town, South Africa.
Cape Town Science Centre · ZAHarvard University · USUniversity of Cape Town · ZA

Funding

Neuroimaging and gut microbiome markers of development in HIV-exposed uninfected infantsR01HD093578 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI HOLMES, MARTHA, KABA, MAMADOU · 2017 to 2022
$2.9M
Longitudinal Neuroimaging and Cognitive Study of HIV-Infected ChildrenR01HD071664 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI LAUGHTON, BARBARA, MEINTJES, ERNESTA MARIA · 2011 to 2015
$2.4M
Neonatal imaging as an early marker of neurodevelopment and predictor of cognitive performance in infants exposed to HIV and ART in utero and perinatallyR01HD085813 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI LAUGHTON, BARBARA, MEINTJES, ERNESTA MARIA · 2016 to 2020
$2.3M
High Resolution Hippocampal Magnetic Resonance Imaging for Alzheimer's ResearchR21AG046657 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI VAN DER KOUWE, ANDRE JAN WILLEM · 2014 to 2015
$457k
Technology development and neuroimaging for 5 year old children with HIV infectioR21MH096559 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI LAUGHTON, BARBARA, MEINTJES, ERNESTA MARIA · 2011 to 2012
$287k
NIA NIH HHS R21 AG046657NICHD NIH HHS R01 HD071664NICHD NIH HHS R01 HD085813NICHD NIH HHS R01 HD093578NIMH NIH HHS R21 MH096559
6 · The paper itself

Abstract

purposeThe efficacy of a Wireless Radio frequency triggered Acquisition Device (WRAD) is evaluated for high frequency (50 Hz) prospective motion correction in a 3-dimensional spoiled gradient echo pulse sequence.

methodsThe device measures the rate of change in the gradient vector fields (slew) using a 3-dimensional assembly of Printed Circuit Board (PCB) inductors and the direction of the static magnetic field using a 3-axis Hall effect magnetometer. The slew vector encoding is highly efficient, because the Maxwell-term position encoding is observable, allowing overconstrained pose measurement using 3 sinusoidal gradient pulses lasting 880 μs. Since small offsets in the magnetometer can introduce bias into the pose estimates, sensor/system biases are tracked using a lightweight Kalman filter. The only calibration required is determining a geometric scaling factor for the pickup coils, which is specific to the device and will therefore be valid in any scanner.

resultsThe device was used to perform prospective motion correction in 3 subjects, resulting in an increase in Average Edge Strength (AES) for involuntary and deliberate motion.

conclusionsThe WRAD is simple to set up and use, with well-defined measurement variance. This could enable "plug and play" prospective motion correction if pulse sequence independence is achieved.

Indexed as

AlgorithmsBrainEquipment DesignHumansImage Processing, Computer-AssistedMagnetic FieldsMagnetic Resonance ImagingMovementMotionMRIprospectiveslewwirelessWRAD

Identifiers

PMID31066109
PMCPMC7266630
OpenAlexW2944503430

What OpenQuestion holds

Textmetadata
LicenceTDM
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.