Evidence map›Paper›PMID 32733998›Full record

ArticleScience advances2020

High-sensitivity in vivo contrast for ultra-low field magnetic resonance imaging using superparamagnetic iron oxide nanoparticles.

David E J Waddington, Thomas Boele, Richard Maschmeyer, Zdenka Kuncic, Matthew S Rosen

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 97 citations in OpenAlex.

  1. Article
  2. Ultra-low fieldCommunications chemistry · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Low-field MRI: A report on the 2022 ISMRM workshop.Magnetic resonance in medicine · 2023
    Review
  15. Interaction of Nanomaterials with Cells and Tissues.International journal of molecular sciences · 2023
    Article
  16. Brain imaging with portable low-field MRI.Nature reviews bioengineering · 2023
    Article
  17. Article
  18. Iron oxide nanoparticles as positive TScientific reports · 2023
    Article
  19. EnhancedMagnetic resonance in medicine · 2023
    Article
  20. 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

5 authors at 2 institutions in 2 countries.

David E J WaddingtonInstitute of Medical Physics, School of Physics A28, University of Sydney, Sydney, NSW 2006, Australia.ORCID 0000-0002-7017-1556
Thomas BoeleA. A. Martinos Center for Biomedical Imaging, 149 Thirteenth St., Charlestown, MA 02129, USA.ORCID 0000-0001-9322-7762
Richard MaschmeyerInstitute of Medical Physics, School of Physics A28, University of Sydney, Sydney, NSW 2006, Australia.ORCID 0000-0002-3805-5440
Zdenka KuncicInstitute of Medical Physics, School of Physics A28, University of Sydney, Sydney, NSW 2006, Australia.ORCID 0000-0001-6765-3215
Matthew S RosenA. A. Martinos Center for Biomedical Imaging, 149 Thirteenth St., Charlestown, MA 02129, USA.ORCID 0000-0002-7194-002X
The University of Sydney · AUHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Magnetic resonance imaging (MRI) scanners operating at ultra-low magnetic fields (ULF; <10 mT) are uniquely positioned to reduce the cost and expand the clinical accessibility of MRI. A fundamental challenge for ULF MRI is obtaining high-contrast images without compromising acquisition sensitivity to the point that scan times become clinically unacceptable. Here, we demonstrate that the high magnetization of superparamagnetic iron oxide nanoparticles (SPIONs) at ULF makes possible relaxivity- and susceptibility-based effects unachievable with conventional contrast agents (CAs). We leverage these effects to acquire high-contrast images of SPIONs in a rat model with ULF MRI using short scan times. This work overcomes a key limitation of ULF MRI by enabling in vivo imaging of biocompatible CAs. These results open a new clinical translation pathway for ULF MRI and have broader implications for disease detection with low-field portable MRI scanners.

Identifiers

PMID32733998
PMCPMC7367688
OpenAlexW3042504751

What OpenQuestion holds

Textmetadata
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.