Imaging of coronary atherosclerosis: intravascular ultrasound

Area of Science:

• Cardiovascular Medicine
• Pathophysiology
• Medical Imaging

Background:

• Atherosclerosis is the primary cause of coronary heart disease, the leading global cause of mortality.
• Low-density lipoprotein (LDL) accumulation and oxidation are critical early steps in atherosclerotic lesion development.
• Complex atherosclerotic plaques, characterized by necrotic cores and thin fibrous caps, result from inflammatory processes.

Purpose of the Study:

• To discuss the role of greyscale intravascular ultrasound in assessing coronary artery disease.
• To highlight the importance of intravascular imaging in understanding atherosclerosis pathophysiology.
• To review the clinical and research applications of intravascular ultrasound in cardiovascular medicine.

Main Methods:

• Greyscale intravascular ultrasound imaging.
• Assessment of atherosclerotic plaque characteristics.
• Longitudinal and axial disease extension evaluation.

Main Results:

• Intravascular ultrasound can fully assess the extent of coronary artery disease, unlike angiography in early stages.
• This imaging technique aids in understanding plaque morphology, including necrotic core and fibrous cap thickness.
• Vessel wall remodeling can mask early atheroma, making intravascular ultrasound crucial for comprehensive assessment.

Conclusions:

• Greyscale intravascular ultrasound is vital for comprehensive assessment of coronary artery disease, overcoming limitations of angiography.
• This technology significantly advances the understanding of atherosclerosis pathophysiology.
• Intravascular ultrasound plays a key role in developing new cardiovascular therapies and devices.