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Current concepts in coronary physiology for the interventionalist.
Steven C Herrmann1, Amr El-Shafei, Morton J Kern
1St Louis University Health Sciences Center, MO, USA.
International Journal of Cardiovascular Interventions
|September 10, 2003
Summary
Coronary angiography is the gold standard for diagnosing coronary artery disease but struggles with precise stenosis quantification. Physiologic measurements like fractional flow reserve offer improved lesion assessment and guide effective coronary intervention.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Diagnostic imaging
Background:
- Coronary angiography is the primary diagnostic tool for epicardial coronary disease.
- Accurate quantification of stenosis severity is challenging due to complex plaque geometry.
- Physiologic measurements supplement angiography for stenosis assessment.
Purpose of the Study:
- To highlight the limitations of coronary angiography in precise stenosis quantification.
- To introduce physiologic measurements as tools for enhanced lesion assessment.
- To emphasize the role of these measurements in guiding coronary intervention.
Main Methods:
- Review of established physiologic measurements for stenosis severity.
- Discussion of coronary flow reserve, relative coronary flow reserve, and fractional flow reserve.
- Evaluation of their utility in assessing angioplasty and stent deployment efficacy.
Main Results:
- Physiologic measurements provide a more quantitative assessment of stenosis severity compared to angiography alone.
- These methods aid in differentiating functionally significant stenosis.
- They are crucial for optimizing interventional procedures.
Conclusions:
- Physiologic assessment is essential for comprehensive evaluation of coronary artery stenosis.
- Fractional flow reserve and related measures improve interventional cardiology outcomes.
- These techniques enhance the diagnostic and therapeutic capabilities in managing coronary disease.