Wireless self-gated multiple-mouse cardiac cine MRI.

Area of Science:

• Cardiovascular Imaging
• Medical Physics
• Preclinical Research

Background:

• Cardiac MRI offers excellent contrast for assessing cardiovascular disease models.
• Current methods are underutilized due to high cost, complexity, and lengthy acquisition times.
• Electrocardiographic lead placement can interfere with MRI gradient pulses.

Purpose of the Study:

• To enhance the efficiency and reduce the cost and complexity of cardiac MRI in mouse models.
• To develop a streamlined MRI protocol for preclinical cardiovascular research.

Main Methods:

• Combined wireless self-gating techniques with simultaneous multi-animal (four mice) cardiac cine imaging.
• Derived cardiac synchronization signals directly from acquired MRI data, eliminating external leads.
• Acquired multislice cardiac cine images concurrently from multiple subjects.

Main Results:

• Wireless self-gating minimized animal preparation time and improved image quality.
• Simultaneous acquisition significantly increased throughput.
• Reduced overall costs associated with MRI instrument access.

Conclusions:

• This novel approach makes cardiac MRI more accessible and efficient for mouse cardiovascular disease research.
• Wireless self-gating and multi-animal imaging overcome key limitations of traditional methods.
• The technique offers a cost-effective solution for high-throughput preclinical cardiovascular assessment.