Related Experiment Video
Updated: Aug 11, 2026
A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay
Published on: August 8, 2013
Detection limit, cut-off and specificity of an improved rapid assay for cardiac troponin T
1Institut für Klinische Chemie und Pathobiochemie, Klinikum rechts der Isar der TU München, Germany,
Insights
The TROPT Sensitive troponin T rapid test demonstrates high sensitivity and specificity for detecting acute coronary syndromes. This improved test offers reliable results for patients with suspected cardiac events.
Area of Science:
- Biochemistry
- Clinical Diagnostics
- Cardiology
Background:
- Acute coronary syndromes (ACS) require rapid and accurate diagnosis.
- Troponin T is a key biomarker for myocardial injury.
- Existing rapid tests may have limitations in sensitivity or specificity.
Purpose of the Study:
- To evaluate the performance of an improved troponin T rapid test, TROPT Sensitive.
- To determine the detection limit and cut-off value of TROPT Sensitive.
- To assess the analytical specificity of TROPT Sensitive.
Main Methods:
- Multicentre evaluation across twelve clinical sites.
- Method comparison with Elecsys Troponin T assay.
- Analysis of samples from patients with suspected ACS, healthy donors, and non-cardiac patients.
Main Results:
- The test cut-off was determined to be 0.08 microg/L (90% positive results).
- The detection limit was found to be approximately 0.05 microg/L.
- Analytical specificity ranged from 99.7% to 99.9%.
Conclusions:
- TROPT Sensitive exhibits high sensitivity and specificity for troponin T detection.
- The test has a narrow window of undefined significance, enhancing reliability.
- TROPT Sensitive is well-suited for the reliable identification of patients with ACS.
Abstract:
The performance of an improved version of the troponin T rapid test TROPT Sensitive was investigated in a multicentre evaluation at twelve centres. The detection limit and the cut-off were determined in a method comparison with Elecsys Troponin T using a total of 365 samples from patients with suspected acute coronary syndromes and 91 samples from healthy blood donors or non-cardiological patients. The analytical specificity was determined by measuring 1271 blood samples from blood donors without any myocardial injury. The test cut-off (90% of results positive) is 0.08 microg/L, and the detection limit is about 0.05 microg/L. The analytical specificity of the test is between 99.7 and 99.9%. With its small area of undefined significance between positive and negative results and its high sensitivity and specificity, TROPT Sensitive is very well suited to the reliable detection of troponin T positive patients with acute coronary syndromes.
Related Concept Videos
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
01:30Acute Coronary Syndrome I: Introduction
01:30Acute Coronary Syndrome III: Diagnostic Studies