Evidence map›Paper›PMID 29495995›Full record

ArticleJournal of the American College of Cardiology2018

Gadolinium-Free Cardiac MR Stress T1-Mapping to Distinguish Epicardial From Microvascular Coronary Disease.

Alexander Liu, Rohan S Wijesurendra, Joanna M Liu, Andreas Greiser, Michael Jerosch-Herold, John C Forfar, Keith M Channon, Stefan K Piechnik, Stefan Neubauer, Rajesh K Kharbanda and 1 more

RetractedOpen access · hybridAbstract readRetracted Publication
In one paragraph

Article in Journal of the American College of Cardiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. 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
12.6field-weighted citation impact, top 1% 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, 77 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Definition and epidemiology of coronary microvascular disease.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. [Advancement of imaging technology for coronary microcirculation dysfunction assessment].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2020
    Review
  11. Article
  12. Review
  13. Article
  14. Coronary Microvascular Dysfunction.Journal of clinical medicine · 2020
    Review
  15. Ischaemia with no obstructive coronary arteries.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2020
    Review
  16. Article
  17. Real-time cardiovascular magnetic resonance T1 and extracellular volume fraction mapping for tissue characterisation in aortic stenosis.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2020
    Article
  18. 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
  19. (Epicardial and microvascular) angina or atypical chest pain: differential diagnoses with cardiovascular magnetic resonance.European heart journal supplements : journal of the European Society of Cardiology · 2020
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 3 countries.

Alexander LiuOxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Rohan S WijesurendraOxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Joanna M LiuOxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Andreas GreiserSiemens Healthcare GmbH, Erlangen, Germany.
Michael Jerosch-HeroldBrigham and Women's Hospital, Radiology, Cardiovascular Imaging, Boston, Massachusetts.
John C ForfarOxford Heart Centre, John Radcliffe Hospital, Oxford, United Kingdom.
Keith M ChannonDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Stefan K PiechnikOxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Stefan NeubauerOxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Rajesh K KharbandaDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Vanessa M FerreiraOxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. Electronic address: vanessa.ferreira@cardiov.ox.ac.uk.
John Radcliffe Hospital · GBUniversity of Oxford · GBBrigham and Women's Hospital · USSiemens Healthcare (Germany) · DE

Funding

ATHEROGENIC &ANTIATHEROGENIC LIPOPROTEINS IN CADF32HL008004 · NHLBI · OKLAHOMA MEDICAL RESEARCH FOUNDATION · PI WILSON, PAUL R · 1989 to 1990
–
British Heart Foundation FS/15/11/31233British Heart Foundation RE/08/004
6 · The paper itself

Abstract

backgroundNovel cardiac magnetic resonance (CMR) stress T1 mapping can detect ischemia and myocardial blood volume changes without contrast agents and may be a more comprehensive ischemia biomarker than myocardial blood flow.

objectivesThis study describes the performance of the first prospective validation of stress T1 mapping against invasive coronary measurements for detecting obstructive epicardial coronary artery disease (CAD), defined by fractional flow reserve (FFR <0.8), and coronary microvascular dysfunction, defined by FFR ≥0.8 and the index of microcirculatory resistance (IMR ≥25 U), compared with first-pass perfusion imaging.

methodsNinety subjects (60 patients with angina; 30 healthy control subjects) underwent CMR (1.5- and 3-T) to assess left ventricular function (cine), ischemia (adenosine stress/rest T1 mapping and perfusion), and infarction (late gadolinium enhancement). FFR and IMR were assessed ≤7 days post-CMR. Stress and rest images were analyzed blinded to other information.

resultsNormal myocardial T1 reactivity (ΔT1) was 6.2 ± 0.4% (1.5-T) and 6.2 ± 1.3% (3-T). Ischemic viable myocardium downstream of obstructive CAD showed near-abolished T1 reactivity (ΔT1 = 0.7 ± 0.7%). Myocardium downstream of nonobstructive coronary arteries with microvascular dysfunction showed less-blunted T1 reactivity (ΔT1 = 3.0 ± 0.9%). Stress T1 mapping significantly outperformed gadolinium-based first-pass perfusion, including absolute quantification of myocardial blood flow, for detecting obstructive CAD (area under the receiver-operating characteristic curve: 0.97 ± 0.02 vs. 0.91 ± 0.03, respectively; p < 0.001). A ΔT1 of 1.5% accurately detected obstructive CAD (sensitivity: 93%; specificity: 95%; p < 0.001), whereas a less-blunted ΔT1 of 4.0% accurately detected microvascular dysfunction (area under the receiver-operating characteristic curve: 0.95 ± 0.03; sensitivity: 94%; specificity: 94%: p < 0.001).

conclusionsCMR stress T1 mapping accurately detected and differentiated between obstructive epicardial CAD and microvascular dysfunction, without contrast agents or radiation.

Indexed as

GadoliniumAdultAgedAngina, UnstableCoronary AngiographyCoronary Artery DiseaseCoronary CirculationExercise TestFemaleHumansMagnetic Resonance Imaging, CineMaleMiddle AgedPericardiumGadoliniumadenosine stresscardiac magnetic resonancecoronary artery diseasemyocardial ischemiaT1 mapping

Identifiers

PMID29495995
PMCPMC5835225
OpenAlexW2790652806

What OpenQuestion holds

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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.