Three-Dimensional PO2 Mapping of Human Lungs in a Short Breath Hold Using Hyperpolarized Xenon-129

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absent acknowledgments acquisitions affects allow apparent appropriate arranged artifacts assess available avoid axial bias biomedical body breath breathing capable centimeter central chest clear coefficient coil commercial complete composition computed concentration consisted containing contiguous conversion converted coverage cystic desirable diagram diffusion dimensional elliptical engineering evident excellent excitation expiration female fibrosis foot formula gradient grant green head healthy heart help highest highly hold homebuilt human included influences inhalation inhalations inhaled john just limited long lung lungs made magenta magnitude make male mapping maps markers measured measuring medical miller mixture motion neighboring nonuniform noticeably oxygen partial partition partitions pixel polarized pressure procedure pulse pulses quantitative radiology regard relatively repeatability repeatable representative resolution room scanner seamless selective sets seven short slew slice slices smoker solutions space spatial spiral spirals spoiled stack starting steady studies subject subjects suggest system tidal trachea trajectory triggered triggers true uniform variance variations ventilation volume volumes whole wild xenon years yellow