Keywords: Motion Correction, Lung
Motivation: To leverage low-field MRI to achieve high quality 3D respiratory-resolved lung vasculature imaging, to improve diagnostic capabilities across respiratory phases.
Goal(s): To develop a free-breathing respiratory-resolved 3D lung imaging framework with feasible scan time at 0.55T.
Approach: Data was acquired in 6 healthy subjects on a 0.55T scanner, with three sequences: a bright-blood bSSFP sequence (CMRA), an interleaved bright and black-blood bSSFP sequence (BOOST), and a Proton Density sequence.
Results: A respiratory-resolved reconstruction framework is demonstrated for 6 healthy volunteers acquired with three sequences. The lung vessels and other anatomical structures are clearly delineated across the respiratory phases, from inspiration to end expiration.
Impact: 3D respiratory-resolved lung images at 0.55T may enable diagnostic capabilities across respiratory phases.
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