Key result
Dynamic specific ventilation imaging using MRI demonstrated that the effects of inhaled methacholine and albuterol were largely complete at ~22 min and ~9 min, respectively.
Why the study?
Can dynamic specific ventilation imaging using MRI practically measure short-term changes in specific ventilation?
Can dynamic specific ventilation imaging using MRI practically measure short-term changes in specific ventilation?
Dynamic specific ventilation imaging using MRI is a practical, radiation-free method to track spatial patterns of ventilation over short timeframes.
Answers are grounded in this paper and cite their sources.
Enables radiation-free dynamic ventilation mapping for research; leaves open clinical adoption pending validation.
Dynamic imaging providing maps of specific ventilation with a temporal resolution of ∼7 min with a spatial resolution of ∼1 cm3 using MRI was shown to be practical. The technique provides an ionizing radiation-free means of temporally following the spatial pattern of specific ventilation. Reanalysis of previously published data showed that the effects of inhaled methacholine and albuterol were largely complete at ∼22 min and ∼9 min, respectively after administration.
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Geier et al. (2022) studied this question. Dynamic specific ventilation imaging using MRI was evaluated on Time to complete effects of inhaled methacholine and albuterol. Dynamic specific ventilation imaging using MRI demonstrated that the effects of inhaled methacholine and albuterol were largely complete at ~22 min and ~9 min, respectively.
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