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Updated: May 13, 2026

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
Is ischemia the most powerful indicator of myocardial viability?
1Department of Cardiology, St. Luke's University Health Network, 801 Ostrum Street, Bethlehem, PA, 18015, USA. jamshid.shirani@sluhn.org
Insights
Recent trials question coronary revascularization for stable ischemic heart failure. Determining myocardial viability may not reliably identify patients benefiting from this intervention.
Area of Science:
- Cardiology
- Cardiovascular Medicine
- Heart Failure Research
Background:
- Chronic symptomatic ischemic heart failure is a significant cause of illness and death.
- The role of coronary revascularization in managing stable ischemic heart failure is debated.
- Identifying myocardial viability (viable vs. scarred tissue) has been proposed to guide revascularization decisions.
Purpose of the Study:
- To review current evidence on ischemia-guided strategies for evaluating and treating chronic ischemic heart disease.
- To assess the utility of myocardial viability determination in patient selection for revascularization.
Main Methods:
- Review of prospective, randomized, multi-center clinical trials.
- Analysis of evidence regarding ischemia-guided approaches.
- Examination of challenges in clinical trial conduct for ischemic heart disease.
Main Results:
- Several randomized trials have raised questions about the benefits of early coronary revascularization in stable ischemic heart failure.
- The predictive value of assessing myocardial viability for selecting patients who benefit most from revascularization is challenged.
- Practical difficulties in conducting ideal clinical investigations for ischemic heart disease have been highlighted.
Conclusions:
- Evidence for an ischemia-guided approach in chronic ischemic heart disease with left ventricular systolic dysfunction needs careful consideration.
- Personalized and goal-directed management strategies are crucial for ischemic heart disease.
- Further research is needed to optimize treatment paradigms for ischemic heart failure.
Abstract:
Chronic symptomatic ischemic heart failure remains a major cause of morbidity and mortality in the adult. Recently, the utility of coronary revascularization in early management of patients with stable ischemic heart failure has come into question by several randomized clinical trials. Some of these studies have also challenged the notion that determination of the predominant state of the dysfunctional left ventricular myocardium (viable or scarred) may facilitate identification of patients who would benefit the most from revascularization. These prospective, randomized, multi-center trials have also exposed many of the practical impediments to conducting an ideal clinical investigation particularly in the context of increasingly recognized need for goal-directed and personalized approaches to management of ischemic heart disease. This review summarizes the present evidence for an ischemia-guided approach to evaluation and treatment of chronic ischemic heart disease with left ventricular systolic dysfunction.
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