Airflow modulation due to the cardiac cycle in healthy subjects
Guilhem Jean Collier 1 , Helen Marshall 1 , and Jim Wild 1
Academic Radiology, University of Sheffield,
Sheffield, United Kingdom
In this work, dynamic acquisition of hyperpolarized
ventilation images was combined with phase contrast
velocimetry sequences to assess airflow modulation due
to the cardiac cycle during inspiration in healthy
subjects. The results show opposite flow oscillations at
the heartbeat frequency between the left lower lobe and
all other lobes, suggesting that the movement of the
heart is influencing the airflow pattern in the lungs.
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