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Cited by 861Acute Myocardial Infarction ResearchClinical Laboratory Practices and Quality ControlBiomarkers in Disease Mechanisms

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Analytical Characteristics of High-Sensitivity Cardiac Troponin Assays

Apple, Fred S, Collinson, Paul O, for the IFCC Task Force on Clinical Applications of Cardiac Biomarkers·2012·Clinical Chemistry
DOI 10.1373/clinchem.2011.165795
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Abstract

BACKGROUND: Cardiac troponins I (cTnI) and T (cTnT) have received international endorsement as the standard biomarkers for detection of myocardial injury, for risk stratification in patients suspected of acute coronary syndrome, and for the diagnosis of myocardial infarction. An evidence-based clinical database is growing rapidly for high-sensitivity (hs) troponin assays. Thus, clarifications of the analytical principles for the immunoassays used in clinical practice are important. CONTENT: The purpose of this mini-review is (a) to provide a background for the biochemistry of cTnT and cTnI and (b) to address the following analytical questions for both hs cTnI and cTnT assays: (i) How does an assay become designated hs? (ii) How does one realistically define healthy (normal) reference populations for determining the 99th percentile? (iii) What is the usual biological variation of these analytes? (iv) What assay imprecision characteristics are acceptable? (v) Will standardization of cardiac troponin assays be attainable? SUMMARY: This review raises important points regarding cTnI and cTnT assays and their reference limits and specifically addresses hs assays used to measure low concentrations (nanograms per liter or picograms per milliliter). Recommendations are made to help clarify the nomenclature. The review also identifies further challenges for the evolving science of cardiac troponin measurement. It is hoped that with the introduction of these concepts, both laboratorians and clinicians can develop a more unified view of how these assays are used worldwide in clinical practice.

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Crossref · 10.1373/clinchem.2011.165795

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  1. Apple, 2011, Short-term biological variation of cardiac troponin I measured with three high-sensitivity assays [Abstract], Clin Chem, 57, C05

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Metadata

Authors
Apple, F. S., Collinson, P. O., & for the IFCC Task Force on Clinical Applications of Cardiac Biomarkers
Affiliations
  • University of Minnesota (US)
  • St George's Hospital (GB)
Corresponding author
Apple, Fred S
ORCID
Venue
Clinical Chemistry
Publisher
Oxford University Press (OUP)
Published
2012-01-01
Volume
58
Issue
1
Pages
54-61
ISSN
  • 0009-9147 (ISSN-L)
  • 1530-8561
DOI
10.1373/clinchem.2011.165795
OpenAlex
W2151231511
Cited by
861
References
41
Citations by year
2026: 26 · 2025: 39 · 2024: 33 · 2023: 42 · 2022: 44 · 2021: 51 · 2020: 53 · 2019: 58 · 2018: 63 · 2017: 87 · 2016: 88 · 2015: 69 · 2014: 75 · 2013: 81 · 2012: 46
FWCI
11.14
Type
journal article
Language
en
Open access
closed
Licence
academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model (vor)
Locations
  • Clinical Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Siemens
  • Abbott
  • Radiometer
  • B.R.A.H.M.S.
  • Roche
  • Alere
  • Instrumentation Laboratories
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Acute Myocardial Infarction Research
  • Health Sciences › Health Professions › Medical Laboratory Technology › Clinical Laboratory Practices and Quality Control
  • Life Sciences › Immunology and Microbiology › Immunology › Biomarkers in Disease Mechanisms
Keywords
high-sensitivity troponin I, high-sensitivity troponin T, cardiac troponin assays, assay standardization, reference limits, biological variation, assay imprecision, myocardial injury biomarkers, acute coronary syndrome, myocardial infarction diagnosis
MeSH terms
Humans, Immunoassay, Myocardial Infarction, Myocardium, Reference Values, Sensitivity and Specificity, Biomarkers, Troponin I, Troponin T, Acute Coronary Syndrome

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