Non-invasive ultrasound-based imaging of atherosclerosis

Area of Science:

• Cardiovascular Medicine
• Medical Imaging
• Vascular Biology

Background:

• Early detection of vascular damage in atherosclerosis is crucial for effective cardiovascular medicine.
• Endothelial dysfunction represents an early indicator of atherosclerosis.
• Accurate assessment of cardiovascular risk factors guides treatment strategies.

Purpose of the Study:

• To review non-invasive ultrasound-based imaging methods for atherosclerosis.
• To highlight the role of endothelial function assessment in early disease detection.
• To discuss the clinical utility and future potential of various ultrasound techniques.

Main Methods:

• Review of current literature on non-invasive ultrasound techniques for atherosclerosis.
• Focus on high-resolution ultrasound for flow-mediated dilation (FMD) of the brachial artery.
• Discussion of intima-media thickness (IMT) and carotid plaque analysis methods.

Main Results:

• Flow-mediated dilation under high-resolution ultrasound is widely used for endothelial function assessment.
• Increased intima-media thickness is linked to cardiovascular events but not recommended for individual risk assessment.
• Advanced techniques like grey-scale median, 3-D ultrasound, and contrast-enhanced ultrasound show promise.

Conclusions:

• Non-invasive ultrasound imaging is fundamental for diagnosing and managing atherosclerosis.
• While FMD is a valuable tool, IMT has limitations in individual risk stratification.
• Emerging ultrasound technologies offer potential for improved atherosclerosis prevention and therapy.