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Abstract #1603

Three dimensional inversion recovery dual-echo ultrashort echo time imaging with k-space reordering for effective suppression of longer T2 species in lung parenchyma imaging

Neville D Gai1, Ashkan A Malayeri1, and David A Bluemke1

1Radiology & Imaging Sciences, NIH, Bethesda, MD, United States

Effective imaging of short T2 species requires efficient suppression of longer T2 tisues to maximize short T2 contrast and dynamic range. While inversion with segmented k-space acquisition in Cartesian schemes is straightforward, inversion with segmented k-space UTE radial acquisition offers some challenges since the center of k-space is sampled with each acquisition resulting in magnetization modulation related artifacts. Here we perform 3D inversion recovery dual-echo UTE imaging of lung parenchyma using a reordered k-space radial scheme to perform artifact free high contrast imaging of native lung parenchyma.

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