Cardiac Triggering Suppresses Heart-Motion Artifacts in Hyperpolarized-Gas Lung PO2 Maps

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absent according acknowledgments acquisition acquisitions although among anomalous apparent appear approximately arrows artifacts attributed beginning behind birdcage body bottom breath cardiac chest chosen commercial compatible computed containing coronal cycle delay delays depicted diagram diaphragm effective effectiveness electrodes eliminated elliptical evident falsely female generated gradient grant healthy heart highly hold homebuilt human hypothesis implementation impossible included inhalation john lung magnitude male mapping maps matrix medical middle miller minimizes mixture motion moves near next often orientation oxygen part particular physiologically pixel placed polarizer position produces prototype pulse radiology regional respectively room rows scanner scheme sensitive sensitization short since slice solutions spoiled style subject subjects supported suppresses suppressing synchronizing thereby thought timing transceiver trigger triggered triggering unphysical variations vicinity whole