Strengths and weaknesses of alternative noninvasive imaging approaches for microvascular ischemia

Area of Science:

• Cardiology
• Vascular Biology
• Medical Imaging

Background:

• Coronary microvascular abnormalities are common and linked to poor clinical outcomes.
• Diagnosing coronary microvascular dysfunction (CMD) is crucial but often relies on invasive methods like coronary angiography.
• Current invasive techniques, such as measuring coronary flow reserve (CFR) and index of microcirculatory resistance (IMR), have limitations including technical availability and procedural risks.

Approach:

• This review critically evaluates various non-invasive imaging modalities for assessing coronary microvascular function.
• It discusses the strengths and limitations of each non-invasive approach.
• The focus is on recent advancements in these alternative diagnostic methods.

Key Points:

• Non-invasive imaging techniques offer accurate and reproducible assessment of coronary microvascular function.
• These methods provide viable alternatives to invasive procedures, reducing patient risk and improving accessibility.
• Understanding the nuances of different non-invasive modalities is key to effective CMD diagnosis.

Conclusions:

• Non-invasive imaging is increasingly important for diagnosing coronary microvascular dysfunction (CMD).
• These techniques present a promising avenue for managing patients with suspected or confirmed CMD.
• Further research and clinical integration of these advanced imaging methods are warranted.