- Oral presentation
- Open Access
Dynamic self-navigated 3D whole-heart radial coronary MRA with retrospective acquisition window selection
© Coppo et al.; licensee BioMed Central Ltd. 2014
- Published: 16 January 2014
- Duty Cycle
- Coronary Artery Segment
- Acquisition Window
- Isotropic Spatial Resolution
- Acquire Image Data
Navigator gated coronary MRA is highly time inefficient as the data collection duty cycle (DC) is only 2% . Here, we report a new, dynamic self-navigated coronary MRA technique with isotropic spatial resolution that a) further improves DC by continuously acquiring image data without ECG triggering and that b) enables retrospective, flexible, and individual selection of the acquisition window in the cardiac cycle.
Non-ECG triggered dynamic self-navigated 3D whole-heart radial coronary MRI with isotropic spatial resolution was successfully implemented in vivo for the first time. It improves DC and enables a retrospective and flexible selection of the acquisition window for coronary MRA data reconstruction. While improvements in signal-to-noise ratio and fat saturation are necessary, this provides a first step toward a coronary MRA approach for which the time frame with the best depiction of a selected coronary artery segment can freely be chosen.
This work was in part supported by the Swiss National Science Foundation grant #320030-143923.
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