Evidence map›Paper›PMID 22144333›Full record

ArticleMagnetic resonance in medicine2012

The magnetic field dependence of water T1 in tissues.

Galina Diakova, Jean-Pierre Korb, Robert G Bryant

Abstract read
In one paragraph

Article in Magnetic resonance in medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Longitudinal relaxation rate (Magma (New York, N.Y.) · 2025
    Pooled it
  2. Article
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  7. Review
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  12. BNeuroImage · 2020
    Article
  13. Article
  14. Ion-specificity and surface water dynamics in protein solutions.Physical chemistry chemical physics : PCCP · 2018
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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.

Galina DiakovaDepartment of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, USA.
Jean-Pierre Korb
Robert G Bryant

Funding

MAGNETIC RELAXATION DISPERSIONR01EB002805 · NIBIB · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI BRYANT, ROBERT GEORGE · 2003 to 2011
$2.6M
NIBIB NIH HHS R01 EB002805
6 · The paper itself

Abstract

The magnetic field dependence of the composite (1)H(2)O nuclear magnetic resonance signal T(1) was measured for excised samples of rat liver, muscle, and kidney over the field range from 0.7 to 7 T (35-300 MHz) with a nuclear magnetic resonance spectrometer using sample-shuttle methods. Based on extensive measurements on simpler component systems, the magnetic field dependence of T(1) of all tissues studied are readily fitted at Larmor frequencies above 1 MHz with a simple relaxation equation consisting of three contributions: a power law, A*ω(-0.60) related to the interaction of water with long-lived-protein binding sites, a logarithmic term B*τ(d) *log(1+1/(ωτ(d))(2)) related to water diffusion at macromolecular interfacial regions, and a constant term associated with the high frequency limit of water-spin-lattice relaxation. The parameters A and B include the concentration and surface area dependences respectively. The logarithmic diffusion term becomes significant at high magnetic fields and is consistent with rapid translational dynamics at macromolecular surfaces. The data are fitted well with translational correlation times of approximately 15 ps for human brain white matter, but with a B value three times larger than gray matter tissues. This analysis suggests that the water-surface translational correlation time is approximately three times longer than in gray matter.

Indexed as

AnimalsBody WaterDose-Response Relationship, RadiationMagnetic FieldsMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleModels, AnimalOrgan SpecificityRadiation DosageRatsRats, Sprague-DawleyTissue Distribution

Identifiers

PMID22144333
PMCPMC3297724

What OpenQuestion holds

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Registered trials

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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.