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Abstract #2222

USPIO-enhanced highly-resolved pulmonary MR angiography in mice with a 3D UTE sequence.

Colleen R Cardiet1, Aurélien J Trotier1, Emeline J Ribot1, and Sylvain Miraux1

1CNRS - Univ. Bordeaux, CRMSB UMR 5536, BORDEAUX Cedex, France

Pulmonary imaging has always been challenging due to many constraints : parenchyma heterogeneity, respiratory and cardiac motion. Until now, pulmonary arteries imaging is commonly done with micro CT scanner, but this imaging method is not convenient for longitudinal evaluations. In this study, we present a magnetic resonance angiography (MRA) technique of the lungs with high spatial resolution combining an UTE 3D SG sequence and the injection of iron nanoparticles. To prevent motion artifact, images acquired during respiration were neglected.

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