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In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
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Clinical assessment in ischaemic cardiomyopathy

E Putz1, R Vagelos

  • 1Division of Cardiovascular Medicine, Stanford University, Stanford, California, USA.

Nuclear Medicine Communications
|April 4, 2002
PubMed

Insights

Heart failure prevalence is rising, particularly from coronary artery disease. Identifying viable myocardium is crucial for assessing treatment options in patients with left ventricular dysfunction.

Area of Science:

  • Cardiology
  • Cardiovascular Disease Research

Background:

  • Heart failure and associated mortality have significantly increased in the US, primarily driven by coronary artery disease.
  • While medical therapies like ACE inhibitors and beta-blockers improve outcomes for left ventricular (LV) dysfunction, they offer modest benefits for severe ischaemic cardiomyopathy.
  • Impaired LV function in these patients may not be irreversible, as suggested by improvements post-coronary revascularization.

Purpose of the Study:

  • To highlight the importance of diagnostic testing for myocardial viability.
  • To emphasize the role of assessing viable myocardium in chronic coronary artery disease patients with LV dysfunction.

Main Methods:

  • Review of existing medical literature and clinical observations.
  • Analysis of treatment outcomes following coronary revascularization procedures.

Main Results:

  • Coronary artery disease is the leading cause of heart failure, accounting for up to 60% of cases.
  • Medical therapies provide only modest improvements for severe ischaemic cardiomyopathy.
  • Improvements in systolic function after revascularization suggest that LV dysfunction can be reversible.

Conclusions:

  • Diagnostic testing for myocardial viability is essential for managing patients with chronic coronary artery disease and LV dysfunction.
  • Identifying viable myocardium aids in clinical decision-making for patients with severe ischaemic cardiomyopathy.

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