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Coronary artery imaging in multiple 1-sec breath holds
M Doyle1, M B Scheidegger, R G de Graaf
1Department of Medicine, University of Alabama, Birmingham 35294.
Magnetic Resonance Imaging
|January 1, 1993
Summary
New breath holding technique significantly reduces imaging time for coronary arteries. This method requires only a 1-second breath hold every 4 seconds, making cardiac imaging more accessible.
Area of Science:
- Cardiovascular imaging
- Medical physics
Background:
- Cardiac motion due to respiration complicates coronary artery imaging.
- Conventional breath-hold techniques require prolonged periods (approx. 15 seconds), challenging patient compliance.
Purpose of the Study:
- To introduce and evaluate a novel, intermittent breath-holding strategy for improved coronary artery imaging.
- To reduce the burden on patients during cardiac scans.
Main Methods:
- A new breath-holding protocol involving a 1-second hold every 4 seconds was developed.
- Cross-sectional imaging data was acquired over approximately 10 minutes.
- Three-dimensional (3D) reconstructions of the coronary tree were generated from the acquired images.
Main Results:
- The intermittent breath-holding strategy effectively minimizes motion artifacts.
- Acquisition of detailed cross-sectional images was achieved within a feasible timeframe.
- Successful generation of 3D renderings of the coronary vasculature was demonstrated.
Conclusions:
- The proposed breath-holding technique offers a more tolerable and practical approach for coronary artery imaging.
- This method has the potential to enhance the quality and accessibility of cardiac scans.
- Intermittent breath-holding could become a valuable tool in cardiovascular diagnostics.