Real-Time Detection and 3D Localization of Coronary Atherosclerosis Using a Microwave Imaging Technique: A Simulation...

Area of Science:

• Biomedical Engineering
• Medical Imaging
• Cardiovascular Technology

Background:

• Accurate localization of coronary artery calcium is crucial for effective angioplasty.
• Current imaging methods may face limitations in precision and resolution within the complex arterial environment.

Purpose of the Study:

• To present a novel microwave imaging approach for high-accuracy detection and 3D localization of coronary artery calcium.
• To evaluate the feasibility of using microwaves for precise calcium identification in coronary arteries.

Main Methods:

• Development of a cylindrical catheter equipped with multiple dipole-like antennas for 360° microwave signal transmission.
• Inclusion of an axial metallic rod within the catheter to mitigate image ambiguity.
• Utilizing simulation data to reconstruct images and assess calcium detection capabilities.

Main Results:

• Successful detection and 3D localization of accumulated calcium on simulated inner coronary artery walls.
• Demonstrated efficacy in the presence of simulated blood flow, addressing a key physiological challenge.
• Validated the imaging approach's potential in a simulated lossy biological tissue environment.

Conclusions:

• The proposed microwave imaging technique offers high accuracy for coronary artery calcium identification.
• This approach shows promise for accurate localization of coronary atherosclerosis during interventional cardiology procedures like angioplasty.
• The system's design considers the constraints of the coronary artery environment, suggesting a viable clinical application.