Evidence map›Paper›PMID 24006267›Full record

ArticleMagnetic resonance in medicine2014

Human cardiac 31P magnetic resonance spectroscopy at 7 Tesla.

Christopher T Rodgers, William T Clarke, Carl Snyder, J Thomas Vaughan, Stefan Neubauer, Matthew D Robson

Open access · hybridAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 3% 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

64 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Phosphorus Magnetic Resonance Spectroscopy (Medicina (Kaunas, Lithuania) · 2023
    Pooled it
  2. Article
  3. Repeatability of Rapid Human Cardiac Phosphorus MRSI (Magnetic resonance in medicine · 2026
    Article
  4. NMR in biomedicine · 2026
    Article
  5. Review
  6. Imaging of metabolic dysfunction in genetic cardiomyopathies.The international journal of cardiovascular imaging · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. 3D ultra-short echo timeResearch square · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

4 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Christopher T RodgersOxford Centre for Clinical Magnetic Resonance Research (OCMR), University of Oxford, Level 0, John Radcliffe Hospital, Oxford, United Kingdom.
William T Clarke
Carl Snyder
J Thomas Vaughan
Stefan Neubauer
Matthew D Robson
John Radcliffe Hospital · GBUniversity of Oxford · GB

Funding

NMR Imaging and SpectroscopyP41EB015894 · NIBIB · UNIVERSITY OF MINNESOTA · PI UGURBIL, KAMIL · 2012 to 2017
$8.4M
HUMAN MRI TO 9.4T AND BEYONDR01EB006835 · NIBIB · UNIVERSITY OF MINNESOTA · PI VAUGHAN, JOHN T · 2007 to 2015
$3.2M
RF SAFETY FOR ULTRA-HIGH FIELD MRIR01EB007327 · NIBIB · UNIVERSITY OF MINNESOTA · PI VAUGHAN, JOHN T · 2007 to 2015
$3.1M
Coils for Human Whole Body Imaging at 7TR42EB013543 · NIBIB · LIFE SERVICES, LLC · PI VAUGHAN, JOHN T · 2014 to 2015
$997k
Medical Research Council G0700796Medical Research Council G0900883NIBIB NIH HHS P41 EB015894NIBIB NIH HHS R01 EB006835NIBIB NIH HHS R01 EB007327NIBIB NIH HHS R42 EB013543Wellcome Trust 090532Wellcome Trust 098436Wellcome Trust 098436/Z/12/Z
6 · The paper itself

Abstract

purposePhosphorus magnetic resonance spectroscopy ((31)P-MRS) affords unique insight into cardiac energetics but has a low intrinsic signal-to-noise ratio (SNR) in humans. Theory predicts an increased (31)P-MRS SNR at 7T, offering exciting possibilities to better investigate cardiac metabolism. We therefore compare the performance of human cardiac (31)P-MRS at 7T to 3T, and measure T1s for (31)P metabolites at 7T.

methodsMatched (31)P-MRS data were acquired at 3T and 7T, on nine normal volunteers. A novel Look-Locker CSI acquisition and fitting approach was used to measure T1s on six normal volunteers.

resultsT1s in the heart at 7T were: phosphocreatine (PCr) 3.05 ± 0.41s, γ-ATP 1.82 ± 0.09s, α-ATP 1.39 ± 0.09s, β-ATP 1.02 ± 0.17s and 2,3-DPG (2,3-diphosphoglycerate) 3.05 ± 0.41s (N = 6). In the field comparison (N = 9), PCr SNR increased 2.8× at 7T relative to 3T, the Cramer-Ráo uncertainty (CRLB) in PCr concentration decreased 2.4×, the mean CRLB in PCr/ATP decreased 2.7× and the PCr/ATP SD decreased 2×.

conclusionCardiac (31)P-MRS at 7T has higher SNR and the spectra can be quantified more precisely than at 3T. Cardiac (31)P T1s are shorter at 7T than at 3T. We predict that 7T will become the field strength of choice for cardiac (31)P-MRS.

Indexed as

AlgorithmsAdultHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMolecular ImagingMyocardiumPhosphorus CompoundsPhosphorus IsotopesRadiopharmaceuticalsReference ValuesReproducibility of ResultsSensitivity and SpecificityTissue EngineeringYoung AdultPhosphorus CompoundsPhosphorus IsotopesRadiopharmaceuticals31P magnetic resonance spectroscopy7 Teslacardiacfield strengthphosphorusT1

Identifiers

PMID24006267
PMCPMC4106879
OpenAlexW1514615714

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.