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Coronary microvascular resistance: methods for its quantification in humans
Paul Knaapen1, Paolo G Camici, Koen M Marques
1Department of Cardiology, VU University Medical Center, Amsterdam, The Netherlands. p.knaapen@vumc.nl
Insights
Coronary microvascular dysfunction impacts myocardial disease prognosis. Accurate assessment of coronary microcirculation function is crucial for diagnosis and monitoring therapeutic interventions.
Area of Science:
- Cardiology
- Vascular Biology
- Diagnostic Imaging
Background:
- Coronary microvascular dysfunction (CMD) is increasingly recognized in myocardial disease.
- CMD has significant prognostic implications for patient outcomes.
- Accurate assessment of coronary microcirculation is needed for diagnosis and treatment monitoring.
Purpose of the Study:
- To review current methodologies for assessing coronary microvascular resistance.
- To discuss the strengths and weaknesses of various invasive and noninvasive imaging techniques.
- To provide an update on quantifying coronary microcirculation functional capacity.
Main Methods:
- Review of invasive methods for measuring coronary microvascular resistance.
- Review of noninvasive imaging techniques for assessing coronary microcirculation.
- Comparative analysis of different quantification methodologies.
Main Results:
- Various invasive and noninvasive methods exist for quantifying coronary microvascular resistance.
- Each method possesses unique strengths and limitations.
- Accurate measurement is key to understanding CMD.
Conclusions:
- Accurate assessment of coronary microvascular resistance is vital for managing CMD.
- Understanding the capabilities of different imaging techniques aids clinical decision-making.
- Further research into optimizing CMD assessment is warranted.
Abstract:
Coronary microvascular dysfunction is a topic that has recently gained considerable interest in the medical community owing to the growing awareness that microvascular dysfunction occurs in a number of myocardial disease states and has important prognostic implications. With this growing awareness, comes the desire to accurately assess the functional capacity of the coronary microcirculation for diagnostic purposes as well as to monitor the effects of therapeutic interventions that are targeted at reversing the extent of coronary microvascular dysfunction. Measurements of coronary microvascular resistance play a pivotal role in achieving that goal and several invasive and noninvasive methods have been developed for its quantification. This review is intended to provide an update pertaining to the methodology of these different imaging techniques, including the discussion of their strengths and weaknesses.
