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Updated: Jun 17, 2026
08:13
In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
Myocardial viability imaging and revascularization in chronic ischemic left ventricular systolic dysfunction
Tanya H Tajouri1, Panithaya Chareonthaitawee
1Department of Internal Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
Expert Review of Cardiovascular Therapy
|December 18, 2009
Summary
Noninvasive viability imaging aids decisions for revascularization in patients with moderate-to-severe left ventricular systolic dysfunction. Current techniques offer benefits but require further outcome studies for optimal treatment strategies.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Revascularization in moderate-to-severe left ventricular systolic dysfunction carries high risks.
- Noninvasive viability imaging is crucial for guiding treatment decisions in these patients.
Purpose of the Study:
- To review the current status of viability imaging techniques.
- To discuss revascularization strategies in chronic ischemic left ventricular systolic dysfunction.
Main Methods:
- Review of established and emerging noninvasive viability imaging modalities.
- Assessment of current evidence on the impact of imaging on patient outcomes.
Main Results:
- Positron emission tomography (PET), single-photon emission computed tomography (SPECT), and dobutamine echocardiography are established techniques.
- Cardiac MRI is increasingly used, and computed tomography shows promise.
- Evidence linking viability imaging to improved patient outcomes is largely from observational studies.
Conclusions:
- Viability imaging offers advantages and disadvantages across modalities.
- Optimal treatment strategies for this patient group remain uncertain.
- Further research is needed to clarify the role of viability imaging in improving patient outcomes.
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