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Abstract #3988

Single Breath-hold, Whole Lung Morphometry with Hyperpolarized 3 He Using Parallel Imaging

Yulin V Chang 1 , James D Quirk 1 , Mario Castro 2 , and Dmitriy A Yablonskiy 1

1 Radiology, Washington University in St. Louis, St. Louis, MO, United States, 2 Medicine, Washington University in St. Louis, St. Louis, MO, United States

Although diffusion-based in vivo lung morphometry with hyperpolarized gases MRI is a powerful tool to study lung diseases, it is usually performed in a 2D mode with only a few slices because of the requirement for repetitive imaging of each slice at different diffusion gradients. Here we present a 3D imaging method that employs multi-channel receive coils and parallel imaging reconstruction techniques. This accelerated imaging scheme allows whole-lung coverage for in vivo lung morphometry measurement with improved resolution and minimum loss of accuracy in a single breath-hold.

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