Spectroscopy to improve identification of vulnerable plaques in cardiovascular disease
Janneke L M Bruggink1, Robbert Meerwaldt, Gooitzen M van Dam
1Department of Surgery, Division of Vascular Surgery, University Medical Center Groningen, Groningen, The Netherlands.
Insights
Cardiovascular disease remains a threat, even in seemingly healthy individuals. Intravascular spectroscopy can now identify vulnerable plaques, a key factor in cardiovascular events, improving risk assessment.
Area of Science:
- Cardiovascular Medicine
- Biomedical Optics
- Medical Imaging
Background:
- Despite advances, cardiovascular disease (CVD) causes unexpected deaths, as traditional risk factors don't predict immediate events.
- Vulnerable plaques, characterized by inflammation and specific composition, are linked to acute cardiovascular events.
- Current methods struggle to assess real-time disease activity or plaque instability.
Purpose of the Study:
- To review the evidence supporting spectroscopy for assessing vulnerable plaque.
- To discuss the potential of intravascular spectroscopic imaging in cardiovascular risk stratification.
Main Methods:
- Spectroscopy as an optical imaging technique analyzes light-tissue interaction.
- Intravascular spectroscopy enables in-situ assessment of arterial plaque composition.
- This review synthesizes current research on spectroscopic plaque vulnerability assessment.
Main Results:
- Spectroscopy reveals tissue biochemical composition, crucial for identifying vulnerable plaques.
- Intravascular spectroscopy demonstrates capability in quantifying plaque vulnerability.
- Advances in spectroscopy enhance its potential for clinical application.
Conclusions:
- Spectroscopy offers a promising method for identifying vulnerable plaques, a critical step in preventing cardiovascular events.
- Intravascular spectroscopic imaging holds significant potential for improving cardiovascular risk assessment and patient outcomes.
Abstract:
Many apparent healthy persons die from cardiovascular disease, despite major advances in prevention and treatment of cardiovascular disease. Traditional cardiovascular risk factors are able to predict cardiovascular events in the long run, but fail to assess current disease activity or nearby cardiovascular events. There is a clear relation between the occurrence of cardiovascular events and the presence of so-called vulnerable plaques. These vulnerable plaques are characterized by active inflammation, a thin cap and a large lipid pool. Spectroscopy is an optical imaging technique which depicts the interaction between light and tissues, and thereby shows the biochemical composition of tissues. In recent years, impressive advances have been made in spectroscopy technology and intravascular spectroscopy is able to assess the composition of plaques of interest and thereby to identify and actually quantify plaque vulnerability. This review summarizes the current evidence for spectroscopy as a measure of plaque vulnerability and discusses the potential role of intravascular spectroscopic imaging techniques.
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