Evidence map›Paper›PMID 31533736›Full record

ArticleJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2019

Model-based myocardial T1 mapping with sparsity constraints using single-shot inversion-recovery radial FLASH cardiovascular magnetic resonance.

Xiaoqing Wang, Florian Kohler, Christina Unterberg-Buchwald, Joachim Lotz, Jens Frahm, Martin Uecker

Abstract readValidation StudyVideo-Audio Media
In one paragraph

Article in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–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

20 citing papers in PubMed.

  1. Article
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  5. Article
  6. The future of cardiovascular magnetic resonance: All-in-one vs. real-time (Part 1).Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
    Review
  7. Simultaneous multislice cardiac multimapping based on locally low-rank and sparsity constraints.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
    Article
  8. Free-breathing myocardial TMagnetic resonance in medicine · 2023
    Article
  9. Latest Advances in Image Acceleration: All Dimensions are Fair Game.Journal of magnetic resonance imaging : JMRI · 2023
    Review
  10. Article
  11. Motion-compensated TFrontiers in cardiovascular medicine · 2023
    Review
  12. Article
  13. Article
  14. Review
  15. Cardiac MR: From Theory to Practice.Frontiers in cardiovascular medicine · 2022
    Review
  16. Article
  17. Physics-based reconstruction methods for magnetic resonance imaging.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2021
    Review
  18. Model-based reconstruction for simultaneous multi-sliceMagnetic resonance in medicine · 2021
    Article
  19. Respiratory Motion-Registered Isotropic Whole-Heart TFrontiers in cardiovascular medicine · 2021
    Article
  20. Accurate myocardial T1 mapping at 5T using an improved modified Look-Locker inversion recovery method: A validation study.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance
    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

6 authors.

Xiaoqing WangDepartment of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany. xiaoqing.wang@med.uni-goettingen.de.
Florian KohlerDepartment of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.
Christina Unterberg-BuchwaldDepartment of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.
Joachim LotzDepartment of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.
Jens FrahmDZHK (German Centre for Cardiovascular Research), partner site Göttingen, Berlin, Germany.
Martin UeckerDepartment of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study develops a model-based myocardial T1 mapping technique with sparsity constraints which employs a single-shot inversion-recovery (IR) radial fast low angle shot (FLASH) cardiovascular magnetic resonance (CMR) acquisition. The method should offer high resolution, accuracy, precision and reproducibility.

methodsThe proposed reconstruction estimates myocardial parameter maps directly from undersampled k-space which is continuously measured by IR radial FLASH with a 4 s breathhold and retrospectively sorted based on a cardiac trigger signal. Joint sparsity constraints are imposed on the parameter maps to further improve T1 precision. Validations involved studies of an experimental phantom and 8 healthy adult subjects.

resultsIn comparison to an IR spin-echo reference method, phantom experiments with T1 values ranging from 300 to 1500 ms revealed good accuracy and precision at simulated heart rates between 40 and 100 bpm. In vivo T1 maps achieved better precision and qualitatively better preservation of image features for the proposed method than a real-time CMR approach followed by pixelwise fitting. Apart from good inter-observer reproducibility (0.6% of the mean), in vivo results confirmed good intra-subject reproducibility (1.05% of the mean for intra-scan and 1.17, 1.51% of the means for the two inter-scans, respectively) of the proposed method.

conclusionModel-based reconstructions with sparsity constraints allow for single-shot myocardial T1 maps with high spatial resolution, accuracy, precision and reproducibility within a 4 s breathhold. Clinical trials are warranted.

Indexed as

Magnetic Resonance ImagingModels, CardiovascularPatient-Specific ModelingAdultBreath HoldingFemaleHealthy VolunteersHeart RateHeart VentriclesHumansImage Interpretation, Computer-AssistedMalePhantoms, ImagingPredictive Value of TestsReproducibility of ResultsYoung AdultModel-based reconstructionMyocardial T1 mappingRadial FLASHSparsity constraint

Identifiers

PMID31533736
PMCPMC6751613

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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.