Evidence map›Paper›PMID 25991580›Full record

ArticleMagnetic resonance in medicine2016

Cardiac perfusion imaging using hyperpolarized (13)C urea using flow sensitizing gradients.

Angus Z Lau, Jack J Miller, Matthew D Robson, Damian J Tyler

Open access · hybridAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
6.5field-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

30 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  4. Investigating the origin of theNMR in biomedicine · 2024
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  7. [HyperpolarizedRadiologie (Heidelberg, Germany) · 2022
    Review
  8. Clinical translation of hyperpolarizedMagnetic resonance in medicine · 2022
    Article
  9. Zero-Field NMR of Urea: Spin-Topology Engineering by Chemical Exchange.The journal of physical chemistry letters · 2021
    Article
  10. Characterization and compensation ofMagnetic resonance in medicine · 2021
    Article
  11. Experimental and therapeutic medicine · 2021
    Article
  12. Fast Imaging for Hyperpolarized MR Metabolic Imaging.Journal of magnetic resonance imaging : JMRI · 2021
    Review
  13. A 3D hybrid-shot spiral sequence for hyperpolarizedMagnetic resonance in medicine · 2021
    Article
  14. Article
  15. Article
  16. Review
  17. HyperpolarizedRadiology · 2019
    Review
  18. Quantitative myocardial first-pass cardiovascular magnetic resonance perfusion imaging using hyperpolarized [1-Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2018
    Article
  19. A non-synthetic approach to extending the lifetime of hyperpolarized molecules using DJournal of magnetic resonance (San Diego, Calif. : 1997) · 2018
    Article
  20. Placental physiology monitored by hyperpolarized dynamicProceedings of the National Academy of Sciences of the United States of America · 2018
    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

4 authors at 1 institution in 1 country.

Angus Z LauDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom.
Jack J MillerDepartment of Physiology, Anatomy and Genetics, University of Oxford, United Kingdom.
Matthew D RobsonDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom.
Damian J TylerDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom.
University of Oxford · GB

Funding

British Heart Foundation FS/10/002/28078British Heart Foundation FS/14/17/30634British Heart Foundation RG/11/9/28921Medical Research Council G0601490
6 · The paper itself

Abstract

purposeTo demonstrate the feasibility of imaging the first passage of a bolus of hyperpolarized (13)C urea through the rodent heart using flow-sensitizing gradients to reduce signal from the blood pool.

methodsA flow-sensitizing bipolar gradient was optimized to reduce the bright signal within the cardiac chambers, enabling improved contrast of the agent within the tissue capillary bed. The gradient was incorporated into a dynamic golden angle spiral (13)C imaging sequence. Healthy rats were scanned during rest (n = 3) and under adenosine stress-induced hyperemia (n = 3).

resultsA two-fold increase in myocardial perfusion relative to rest was detected during adenosine stress-induced hyperemia, consistent with a myocardial perfusion reserve of two in rodents.

conclusionThe new pulse sequence was used to obtain dynamic images of the first passage of hyperpolarized (13)C urea in the rodent heart, without contamination from bright signal within the neighboring cardiac lumen. This probe of myocardial perfusion is expected to enable new hyperpolarized (13)C studies in which the cardiac metabolism/perfusion mismatch can be identified. Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance.

Indexed as

AnimalsCarbon IsotopesHeartImage Processing, Computer-AssistedMaleMyocardial Perfusion ImagingPhantoms, ImagingRatsRats, WistarSignal-To-Noise RatioUreaCarbon IsotopesUrea13Ccardiacfirst-pass perfusionhyperpolarizationurea

Identifiers

PMID25991580
PMCPMC4556069
OpenAlexW1738317342

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.