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Published on: March 27, 2018
[Ischemic burden vs. coronary artery morphology : What is crucial for the indication of revascularization?]
1Klinische Abteilung für Nuklearmedizin, Universitätsklinik für Radiologie und Nuklearmedizin, Währinger Gürtel 18-20, 1090, Wien, Österreich.
Insights
Ischemic heart disease diagnosis benefits from functional testing like fractional flow reserve (FFR) measurements. Comparing functional ischemia testing with anatomical methods aids in risk stratification and guiding therapy for coronary artery disease.
Area of Science:
- Cardiology
- Medical Imaging
- Diagnostic Techniques
Background:
- Ischemic heart disease remains a leading cause of mortality globally.
- Invasive coronary angiography is the gold standard for coronary artery morphology.
- Functional diagnostics are increasingly important for ischemia testing.
Purpose of the Study:
- Compare ischemia testing with morphological methods for diagnosing coronary artery disease.
- Evaluate the role of functional diagnostics in risk stratification and therapy guidance.
- Discuss the potential of hybrid imaging for integrated anatomical and functional assessment.
Main Methods:
- Review of current imaging modalities for functional assessment: stress echocardiography, MRI, SPECT, PET.
- Comparison of functional diagnostics (e.g., fractional flow reserve) with anatomical methods.
- Discussion of hybrid imaging approaches.
Main Results:
- Functional diagnostics provide advanced risk stratification and therapy guidance for coronary artery disease.
- Fractional flow reserve (FFR) measurement during angiography is recommended for ischemia testing.
- Hybrid imaging may offer a combined anatomical and functional assessment in a single investigation.
Conclusions:
- Ischemia testing plays a crucial role in managing coronary artery disease.
- Integrating functional and morphological assessments improves patient management.
- Future imaging algorithms may enhance diagnostic efficiency through hybrid approaches.
Abstract:
Ischemic heart disease still represents the leading cause of death in the western world despite a decrease of mortality in the last decade. For the diagnostics of coronary artery morphology, invasive coronary angiography represents the gold standard. Nevertheless, in recent years the importance of functional diagnostics of the coronary arteries has increased and various imaging procedures for the measurement of fractional flow reserve (FFR) during coronary angiography were established and recommended for ischemia testing in the actual guidelines on myocardial revascularization.Imaging modalities for diagnostics of the functional relevance of coronary artery disease include stress echocardiography, magnetic resonance imaging (MRI), single photon emission computed tomography (SPECT), and positron emission tomography (PET). These procedures enable advanced risk stratification and therapy guiding in patients with suspected or known coronary artery disease. In future algorithms, hybrid imaging may facilitate the determination of anatomical and functional aspects after only one investigation.In the present article, the role of ischemia testing is compared with morphological methods for the diagnosis of coronary artery disease, individual risk stratification, and therapy guiding.
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