Evidence map›Paper›PMID 26114731›Full record

ArticleJournal of magnetic resonance imaging : JMRI2016

Inter-study reproducibility of left ventricular torsion and torsion rate quantification using MR myocardial feature tracking.

Johannes T Kowallick, Geraint Morton, Pablo Lamata, Roy Jogiya, Shelby Kutty, Joachim Lotz, Gerd Hasenfuß, Eike Nagel, Amedeo Chiribiri, Andreas Schuster

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing 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

38 citing papers in PubMed.

  1. Trial
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  6. Non-invasively measured myocardial torsional modulus: Comparison to invasive evaluation of diastolic function.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Myocardial mechanics in dilated cardiomyopathy: prognostic value of left ventricular torsion and strain.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Article
  11. Morphological and functional cardiac consequences of rapid hypertension treatment: a cohort study.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Article
  12. Takotsubo Syndrome-Is There a Need for CMR?Current heart failure reports · 2021
    Review
  13. Defining the optimal temporal and spatial resolution for cardiovascular magnetic resonance imaging feature tracking.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Article
  14. Article
  15. CardIAc: an open-source application for myocardial strain analysis.International journal of computer assisted radiology and surgery · 2021
    Article
  16. Clinical validation of three cardiovascular magnetic resonance techniques to measure strain and torsion in patients with suspected coronary artery disease.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2020
    Article
  17. Article
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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

10 authors.

Johannes T KowallickDivision of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, United Kingdom.
Geraint MortonPortsmouth Hospitals NHS Trust, Portsmouth, United Kingdom.
Pablo LamataDivision of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, United Kingdom.
Roy JogiyaDivision of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, United Kingdom.
Shelby KuttyChildren's Hospital and Medical Center, University of Nebraska College of Medicine, Omaha, Nebraska, USA.
Joachim LotzInstitute for Diagnostic and Interventional Radiology, Georg-August-University Göttingen, Göttingen, Germany.
Gerd HasenfußDZHK (German Centre for Cardiovascular Research), partner site Göttingen, Germany.
Eike NagelDivision of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, United Kingdom.
Amedeo ChiribiriDivision of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, United Kingdom.
Andreas SchusterDivision of Imaging Sciences and Biomedical Engineering, The Rayne Institute, St Thomas' Hospital, King's College London, London, United Kingdom.

Funding

Wellcome TrustWellcome Trust 099973/Z12/Z
6 · The paper itself

Abstract

backgroundTo determine the inter-study reproducibility of MR feature tracking (MR-FT) derived left ventricular (LV) torsion and torsion rates for a combined assessment of systolic and diastolic myocardial function.

methodsSteady-state free precession (SSFP) cine LV short-axis stacks were acquired at 9:00 (Exam A), 9:30 (Exam B), and 14:00 (Exam C) in 16 healthy volunteers at 3 Tesla. SSFP images were analyzed offline using MR-FT to assess rotational displacement in apical and basal slices. Global peak torsion, peak systolic and peak diastolic torsion rates were calculated using different definitions ("twist", "normalized twist" and "circumferential-longitudinal (CL) shear angle"). Exam A and B were compared to assess the inter-study reproducibility. Morning and afternoon scans were compared to address possible diurnal variation.

resultsThe different methods showed good inter-study reproducibility for global peak torsion (intraclass correlation coefficient [ICC]: 0.90-0.92; coefficient of variation [CoV]: 19.0-20.3%) and global peak systolic torsion rate (ICC: 0.82-0.84; CoV: 25.9-29.0%). Conversely, global peak diastolic torsion rate showed little inter-study reproducibility (ICC: 0.34-0.47; CoV: 40.8-45.5%). Global peak torsion as determined by the CL shear angle showed the best inter-study reproducibility (ICC: 0.90;CoV: 19.0%). MR-FT results were not measurably affected by diurnal variation between morning and afternoon scans (CL shear angle: 4.8 ± 1.4°, 4.8 ± 1.5°, and 4.1 ± 1.6° for Exam A, B, and C, respectively; P = 0.21).

conclusionMR-FT based derivation of myocardial peak torsion and peak systolic torsion rate has high inter-study reproducibility as opposed to peak diastolic torsion rate. The CL shear angle was the most reproducible parameter independently of cardiac anatomy and may develop into a robust tool to quantify cardiac rotational mechanics in longitudinal MR-FT patient studies.

Indexed as

AdultFemaleHumansImage Interpretation, Computer-AssistedMaleObserver VariationPattern Recognition, AutomatedReproducibility of ResultsSensitivity and SpecificityTorsion AbnormalityVentricular Dysfunction, Leftcardiovascular magnetic resonancecircumferential longitudinal shear anglefeature trackinginter-study reproducibilitytorsiontwist

Identifiers

PMID26114731
PMCPMC6231545

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.