Advanced Imaging Techniques for Atherosclerosis and Cardiovascular Calcification in Animal Models.

Area of Science:

• Cardiovascular Imaging
• Animal Models
• Atherosclerosis Research

Background:

• Atherosclerosis and cardiovascular calcification are critical indicators for cardiovascular risk.
• Accurate detection and assessment are vital for effective risk stratification and therapeutic development.
• Animal models are essential for studying the development and treatment of cardiovascular calcification.

Purpose of the Study:

• To review current and emerging imaging techniques for assessing atherosclerosis and cardiovascular calcification in animal models.
• To highlight the capabilities and limitations of various imaging modalities.
• To discuss the potential of combined imaging approaches for future research.

Main Methods:

• Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) for non-invasive visualization.
• Positron Emission Tomography (PET) integration for molecular imaging (e.g., 18F-sodium fluoride).
• Photoacoustic imaging for plaque composition analysis and Light-sheet fluorescence microscopy for high-resolution 3D imaging.

Main Results:

• CT and MRI provide non-invasive in vivo visualization of calcification.
• PET-CT/MRI enables detection of metabolically active microcalcifications.
• Photoacoustic imaging offers high contrast but is limited by penetration depth; light-sheet microscopy excels in resolution but is primarily ex vivo.

Conclusions:

• Evolving imaging tools are enhancing the understanding of cardiovascular calcification development in animal models.
• Combining traditional and molecular imaging modalities offers a powerful approach for future research.
• These advancements will improve the investigation of therapeutic strategies for atherosclerotic calcification.