Background: Magnetic resonance imaging (MRI) is an important tool for cardiac research, and it is frequently used for resting cardiac assessments. However, research into non-pharmacological stress cardiac evaluation is limited.Methods: We aimed to design a portable and relatively inexpensive MRI cycle ergometer capable of continuously measuring pedalling workload while patients exercise to maintain target heart rates.Results: We constructed and tested an MRI-compatible cycle ergometer for a 1.5 T MRI scanner. Resting and sub-maximal exercise images (at 110 beats per minute) were successfully obtained in 8 healthy adults.Conclusions: The MRI-compatible cycle ergometer constructed by our research group enabled cardiac assessments at fixed heart rates, while continuously recording power output by directly measuring pedal force and crank rotation. © 2012 Gusso et al; licensee BioMed Central Ltd.
CITATION STYLE
Gusso, S., Salvador, C., Hofman, P., Cutfield, W., Baldi, J. C., Taberner, A., & Nielsen, P. (2012). Design and testing of an MRI-compatible cycle ergometer for non-invasive cardiac assessments during exercise. BioMedical Engineering Online, 11. https://doi.org/10.1186/1475-925X-11-13
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