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Abstract #4568

High Throughput Cardiac MRI Using Interleaved Breath-Hold Cardiac Cine and Free-Breathing Coronary MR Angiography: Initial Results

Markus Henningsson1, Reza Nezafat2, Peter Koken3, Giel Mens4, Rene M. Botnar1

1Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom; 2Harvard Medical School, Boston, MA, United States; 3Philips Research, Hamburg, Germany; 4Philips Healthcare, Best, Netherlands

Scans using multiple breath-holds are inefficient because no data is acquired while the subject is breathing freely between breath-holds. In this work we investigate a new framework for interleaving a free-breathing coronary MRA dataset during the patient recovery period between breath-holds of a cardiac cine scan. This result in a shorter total scan time of nearly 50% compared to if the free-breathing and breath-held scan were acquired without interleaving. The proposed framework has potential to greatly improve throughput in cardiac MRI by allowing for a more efficient use of breath-held and free-breathing scans.

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