Intravascular Ultrasound-based Imaging Modalities for Tissue Characterisation

Area of Science:

• Cardiovascular Imaging
• Medical Ultrasound
• Atherosclerosis Research

Background:

• Atherosclerosis is a primary cause of cardiovascular mortality globally.
• Intravascular ultrasound (IVUS) complements angiography in assessing coronary artery walls.
• Standard IVUS has limitations in identifying specific atherosclerotic plaque components.

Purpose of the Study:

• To highlight the limitations of standard gray-scale IVUS.
• To introduce advanced IVUS-based imaging methods for plaque characterization.
• To demonstrate the utility of these methods in identifying vulnerable plaque.

Main Methods:

• Utilizing advanced IVUS-based imaging techniques: virtual histology IVUS, iMAP-IVUS, and Integrated Backscatter IVUS.
• Analyzing ultrasound backscatter signals for detailed plaque morphology and tissue characterization.
• Applying these methods in atherosclerosis progression-regression studies.

Main Results:

• New IVUS methods overcome limitations of standard gray-scale IVUS.
• These techniques enable more accurate identification of specific plaque components.
• Advanced IVUS provides insights into the features of vulnerable plaque.

Conclusions:

• Advanced IVUS-based imaging significantly enhances plaque characterization.
• These methods are crucial for identifying vulnerable plaques.
• Improved plaque identification aids in managing cardiovascular disease risk.