We used 80% propane/20% oxygen mixture as an imaging agent and conventional 1H MRI to image the lungs of a living rat. We believe that this is the first time propane gas has been used in vivo for imaging of the lungs. We obtained an SNR approaching 50 from the propane in the lungs. Our results demonstrate that propane has a possibility of being used as a lung imaging modality for detection of various pulmonary diseases.
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