- Poster presentation
- Open Access
Initial in vivo validation of real-time phase-contrast sequence
© Hu et al; licensee BioMed Central Ltd. 2015
- Published: 3 February 2015
- Cardiac Output
- Total Acquisition Time
- Quantitative Flow
- SSFP Sequence
- Flow Trend
Phase-Contrast MRI (PC-MRI) is a standard tool used for the quantitation of flow in everyday cardiac MR studies. However current methods require multiple breath-holds and post-acquisition analysis. A PC-MRI sequence that provides real-time acquisition and display of quantitative flow rates has the potential to substantially reduce scan times while providing the clinician with the immediate ability to query flow trends and disturbances. The feasibility of using real-time MRI for the quantitation of flow has been previously reported (Joseph, et al. JMRI 2014, 40:206-213). We have implemented a real-time sequence using the Heartvista cardiac package (HeartVista, Inc., Menlo Park, CA) for this initial, in vivo validation study.
Utilizing a novel PC-MRI sequence that acquires and displays quantitative flow information in real-time, the accuracy of the real-time PC-MRI sequence has been validated with a small number of patients and volunteers. In addition, the real-time PC-MRI sequence required significantly less time to acquire images and calculate cardiac output than the conventional Fiesta SSFP.
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