Highly accelerated dynamic acquisition of 3D grid-tagged hyperpolarized-gas lung images using compressed sensing.

William J Garrison,Kun Qing,Sina Tafti,John P Mugler,Y Michael Shim,Jaime F Mata,Gordon D Cates,Eduard E de Lange,Craig H Meyer,Jing Cai,G Wilson Miller

Magnetic resonance in medicine（2023）

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摘要

We developed a compressed sensing-based method for multiframe 3D MRI of grid-tagged hyperpolarized gas in the lung during exhalation. This method successfully overcomes previous challenges for 3D dynamic grid-tagging, allowing time-resolved biomechanical readouts of lung function to be generated.

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关键词

compressed sensing,hyperpolarized gas,pulmonary biomechanics,tagging MRI,variable-density MR sampling

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