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December 8, 2025Magnetic Resonance Materials in Physics Biology and MedicineOpen Access

Exercise MRI stress testing of the human heart at 3 Tesla: measurement precision of biventricular function and aortic blood flow during steady-state bicycling exercise

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Authors

MFMartijn FroelingHJH T Jørstad

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Overview

MRI stress testing shows cardiac response and function during exercise in healthy individuals, indicating the method's precision.

Key Points

  • The aim was to quantify heart function during exercise using dynamic real-time cine MRI at 3 Tesla.
  • Twelve volunteers performed steady-state bicycling exercise while real-time cine MR images were collected.
  • A 72-channel receiver coil array and parallel imaging acceleration factor of 5 were used.
  • Biventricular volumes and function were compared with resting-state MRI and validated against 2D phase-contrast MRI.
  • Stroke volumes increased with exercise intensity, while end-systolic volumes decreased.
  • LV stroke volume increased from about 90 mL at rest to about 114 mL during vigorous exercise.
  • Repeatability coefficients for LV stroke volumes were 52% and 41% at moderate and vigorous intensity, respectively.

Cite This Study

Froeling et al. (2025) studied this question.

synapsesocial.com/papers/693624ad4fa91c937236c53chttps://doi.org/10.1007/s10334-025-01304-9
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