Since Perfluoropropane is highly inert, and can be mixed with oxygen, patients can inhale up to 30 liters of gas during one examination without a significant physiological impact. This enables detailed measurements of gas wash-in dynamics using 19F magnetic resonance imaging. In this work, an experimental setup for volume-controlled imaging of multiple breath-holds is realized using a pneumotachometer and pneumatic valves as well as MR triggering. In three healthy volunteers, the stability of the breathing volumes and the positions of the diaphragm, as well as the standard deviation of wash-in times, were analyzed comparing volume-controlled to non-controlled scans.
This abstract and the presentation materials are available to members only; a login is required.