Abstract
Aortic flow changes during free breathing exercise, measured with real time MRI
Highlights
Measuring flow with MRI is well established
We used a new real-time sequence to measure aortic flow during exercise. This phase contrast echo planar imaging (EPI) sequence was previously validated against flow phantoms, and we have recently validated it against the clinical standard sequence in vivo at rest
Peak velocity (PV) and peak flow rate (PFR) values were taken from the cardiac cycle with the largest stroke volume (SV) of the actual acquisition
Summary
Measuring flow with MRI is well established. It is challenging, to detect beat-to-beat blood flow response to exercise. We used a new real-time sequence to measure aortic flow during exercise. This phase contrast echo planar imaging (EPI) sequence was previously validated against flow phantoms, and we have recently validated it against the clinical standard sequence in vivo at rest. We set out to establish a methodology of measuring ascending aortic flow during free breathing exercise
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