Breath-hold three-dimensional contrast-enhanced coronary MR angiography: motion-matched k-space sampling for reducing cardiac motion effects.
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Abstract
A view order that matches k-space sampling to cardiac motion within the acquisition window was developed for breath-hold three-dimensional contrast material-enhanced coronary magnetic resonance angiography. In vivo experiments in seven volunteers demonstrated that blurring was substantially reduced with this motion-matched view order as compared with the standard centric view order. Coronary arteries were well delineated.
Medical subject headings
- Contrast Media
- Coronary Vessels
- Heart
- Image Enhancement
- Image Processing, Computer-Assisted
- Magnetic Resonance Angiography
- Respiration