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Updated: May 27, 2026

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction
Published on: October 14, 2016
Myocardial edema imaging in acute coronary syndromes
Michael C Walls1, David Verhaert, James K Min
1The Ohio State University, Columbus, Ohio, USA.
Insights
Cardiac magnetic resonance (CMR) imaging detects myocardial edema, aiding risk stratification for acute coronary syndromes (ACS). This technique improves prognostic accuracy and guides therapy selection for patients with unstable angina or myocardial infarction.
Area of Science:
- Cardiology
- Medical Imaging
- Biomedical Engineering
Background:
- Acute coronary syndromes (ACS) remain a leading cause of morbidity in industrialized nations.
- Despite advances in revascularization and medical therapy, risk stratification is crucial for many ACS patients.
- Current clinical markers for prognosis assignment and therapeutic guidance have limitations.
Purpose of the Study:
- To review the rationale and clinical applications of myocardial edema imaging using cardiac magnetic resonance (CMR).
- To highlight CMR's ability to define the myocardium at risk in ACS.
- To discuss how CMR-based edema imaging refines prognostic estimates and guides therapy.
Main Methods:
- Cardiac magnetic resonance (CMR) for myocardial edema imaging.
- Review of existing literature on CMR techniques and clinical outcomes.
- Discussion of the sensitivity and specificity of CMR edema imaging compared to standard markers.
Main Results:
- Myocardial edema imaging with CMR can accurately define the extent of myocardium at risk.
- CMR provides improved prognostic accuracy compared to conventional clinical markers.
- Edema imaging guides therapeutic selection and improves patient outcomes.
Conclusions:
- Myocardial edema imaging using CMR is a valuable tool for risk stratification in ACS.
- CMR enhances prognostic assessment and therapeutic decision-making in patients with unstable angina and myocardial infarction.
- Further clinical applications of CMR edema imaging are anticipated.
Abstract:
Acute coronary syndromes (ACS) continue to be the most common morbid condition of industrialized nations. The advent of and technical improvements in revascularization and medical therapy have led to a steady decline in mortality rates. However, many patients who suffer unstable angina or myocardial infarction require further testing and risk stratification to guide therapeutic selection and prognosis assignment. Myocardial edema imaging with cardiac magnetic resonance (CMR) affords the ability to define the amount of myocardium at risk, refine estimates of prognosis and provide guidance for therapies with excellent sensitivity compared with standard clinical markers. This review will discuss the rationale for edema imaging, how it is performed using CMR, and potential clinical applications.
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