Free-Breathing Cardiac Cine MRI using the Diminishing Variance Algorithm
R Reeve Ingle 1 , Kenneth O Johnson 1 , Galen D Reed 1 , Juan M Santos 1 , William R Overall 1 , and Bob S Hu 1,2
HeartVista, Inc., Menlo Park, California,
Palo Alto Medical Foundation, Palo Alto, California,
A technique for free-breathing 2D cardiac cine MRI is
proposed. Respiratory motion is monitored in real time
using the respiratory bellows signal, and the
diminishing variance algorithm is used to reacquire
motion-corrupted data. The proposed technique is
demonstrated in free-breathing volunteer scans,
acquiring a stack of short-axis images covering the
entire left ventricle.
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