Theoretical models for coronary vascular biomechanics: progress & challenges

Area of Science:

• Cardiovascular Physiology
• Computational Biology
• Biomedical Engineering

Background:

• Cardiac function relies on myocardial blood supply via the coronary vasculature.
• Coronary vascular system dynamics arise from complex interactions across multiple scales.
• The cardiac Physiome Project aims to create theoretical models for heart simulation.

Purpose of the Study:

• To develop theoretical models simulating cardiac functional behavior under physiological and pathophysiological conditions.
• To focus on key components of the coronary vasculature for theoretical modeling.
• To identify challenges and areas for future research in coronary vascular system modeling.

Main Methods:

• Reviewing the state-of-the-art in theoretical model development for vascular components.
• Focusing on vascular structure and mechanics, blood flow and mass transport, flow regulation, angiogenesis, vascular remodeling, and cellular mechanics.
• Discussing challenges in integrating component models for a comprehensive simulation tool.

Main Results:

• Summarized current theoretical approaches for key coronary vascular components.
• Identified areas requiring further research in vascular modeling.
• Highlighted challenges in integrating diverse models into a unified computational tool.

Conclusions:

• Developing integrated theoretical models is crucial for simulating coronary vascular system responses.
• Further research is needed to overcome challenges in model integration.
• Such models will aid in understanding disease, therapy, and changing physiological demands on the heart.