Author(s)
Johan Heiberg, Benjamin Asschenfeldt, MarieMaagaarda, Steffen Ringgaard
Date
2017-07-17
Source
Clinical Imaging

Abstract
PURPOSE:
The aim was to establish a method for performing dynamic exercise during magnetic resonance imaging (MRI) using a slowly increasing workload protocol.

METHODS:
An ergometer bicycle with a step-wise, exercise protocol was used. Real-time phase-contrast MRI images of the aorta were obtained at each exercise step.

RESULTS:
In total, 40 participants completed the exercise protocol to reach a mean maximum cardiac output of 13.7±3.7l/min and a heart rate of 150±16beats/min at the highest exercise level. Less than 1% of scans were discarded due to poor quality.

CONCLUSIONS:
Dynamic, high intensity exercise is feasible during MRI.

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