Evidence map›Paper›PMID 28238284›Full record

ArticleJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2017

Native T1 mapping: inter-study, inter-observer and inter-center reproducibility in hemodialysis patients.

Matthew P M Graham-Brown, Elaine Rutherford, E Levelt, Daniel S March, Darren R Churchward, David J Stensel, Christie McComb, Kenneth Mangion, Samantha Cockburn, Colin Berry and 4 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
7.4field-weighted citation impact, top 2% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
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  5. Article
  6. The relationship between native T1 and mortality in patients requiring maintenance haemodialysis, using cardiac magnetic resonance imaging.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2025
    Article
  7. Native TQuantitative imaging in medicine and surgery · 2023
    Article
  8. Article
  9. Article
  10. TCardiac failure review · 2022
    Review
  11. Article
  12. Myocardial changes on 3T cardiovascular magnetic resonance imaging in response to haemodialysis with fluid removal.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    Observational
  13. Article
  14. Article
  15. Article
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  19. Influence of hydration status on cardiovascular magnetic resonance myocardial T1 and T2 relaxation time assessment: an intraindividual study in healthy subjects.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2020
    Article
  20. The reliability and feasibility of non-contrast adenosine stress cardiovascular magnetic resonance T1 mapping in patients on haemodialysis.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2020
    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

14 authors at 8 institutions in 1 country.

Matthew P M Graham-BrownJohn Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK. mpmgb1@le.ac.uk.
Elaine RutherfordBHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow, UK.
E LeveltDepartment of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital Leicester, Leicester, UK.
Daniel S MarchJohn Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK.
Darren R ChurchwardJohn Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK.
David J StenselNational Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.
Christie McCombBHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow, UK.
Kenneth MangionBHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow, UK.
Samantha CockburnBHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow, UK.
Colin BerryBHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow, UK.
James C MoonUCL Institute of Cardiovascular Science, University College London, London, UK.
Patrick B MarkBHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow, UK.
James O BurtonJohn Walls Renal Unit, University Hospitals Leicester NHS Trust, Leicester, UK.
Gerry P McCannDepartment of Cardiovascular Sciences, University of Leicester and NIHR Leicester Cardiovascular Biomedical Research Unit, Glenfield Hospital Leicester, Leicester, UK.
University of Glasgow · GBUniversity Hospitals of Leicester NHS Trust · GBGlenfield Hospital · GBLoughborough University · GBNIHR Leicester Cardiovascular Biomedical Research Unit · GBQueen Elizabeth University Hospital · GBUniversity College London · GBUniversity of Leicester · GB

Funding

British Heart Foundation FS/10/40/28260British Heart Foundation FS/12/56/29723Department of Health CDF-2014-07-045Department of Health CS-2013-13-014Medical Research Council MR/N003403/1
6 · The paper itself

Abstract

backgroundNative T1 mapping is a cardiovascular magnetic resonance (CMR) technique that associates with markers of fibrosis and strain in hemodialysis patients. The reproducibility of T1 mapping in hemodialysis patients, prone to changes in fluid status, is unknown. Accurate quantification of myocardial fibrosis in this population has prognostic potential.

methodsUsing 3 Tesla CMR, we report the results of 1) the inter-study, inter-observer and intra-observer reproducibility of native T1 mapping in 10 hemodialysis patients; 2) inter-study reproducibility of left ventricular (LV) structure and function in 10 hemodialysis patients; 3) the agreement of native T1 map and native T1 phantom analyses between two centres in 20 hemodialysis patients; 4) the effect of changes in markers of fluid status on native T1 values in 10 hemodialysis patients.

resultsInter-study, inter-observer and intra-observer variability of native T1 mapping were excellent with co-efficients of variation (CoV) of 0.7, 0.3 and 0.4% respectively. Inter-study CoV for LV structure and function were: LV mass = 1%; ejection fraction = 1.1%; LV end-diastolic volume = 5.2%; LV end-systolic volume = 5.6%. Inter-centre variability of analysis techniques were excellent with CoV for basal and mid-native T1 slices between 0.8-1.2%. Phantom analyses showed comparable native T1 times between centres, despite different scanners and acquisition sequences (centre 1: 1192.7 ± 7.5 ms, centre 2: 1205.5 ± 5 ms). For the 10 patients who underwent inter-study testing, change in body weight (Δweight) between scans correlated with change in LV end-diastolic volume (ΔLVEDV) (r = 0.682;P = 0.03) representing altered fluid status between scans. There were no correlations between change in native T1 between scans (ΔT1) and ΔLVEDV or Δweight (P > 0.6). Linear regression confirmed ΔT1 was unaffected by ΔLVEDV or Δweight (P > 0.59).

conclusionsMyocardial native T1 is reproducible in HD patients and unaffected by changes in fluid status at the levels we observed. Native T1 mapping is a potential imaging biomarker for myocardial fibrosis in patients with end-stage renal disease.

Indexed as

Renal DialysisAdultAgedCardiomyopathiesFemaleFibrosisHumansKidney Failure, ChronicLinear ModelsMagnetic Resonance Imaging, CineMaleMiddle AgedMyocardiumObserver VariationPhantoms, ImagingPredictive Value of TestsCardiovascular magnetic resonanceHemodialysisMyocardial fibrosisNative T1Reproducibility

Identifiers

PMID28238284
PMCPMC5327541
OpenAlexW2586524236

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.