Abstract #2448
Dynamic Volumetric MRI using Golden-Angle Variable Density Spiral Acquisition with Sparse Parallel Imaging Reconstruction
Lyu Li 1 , Xiaodong Ma 1 , Pascal Spincemaille 2 , Yi Wang 2,3 , Huijun Chen 1 , and Hua Guo 1
1
Center for Biomedical Imaging Research,
Department of Biomedical Engineering, School of
Medicine, Tsinghua University, Beijing, China,
2
Radiology,
Weill Cornell Medical College, New York, United States,
3
Biomedical
Engineering, Cornell University, New York, United States
High resolution dynamic volumetric MRI is crucial for
the accurate clinical diagnosis. Several studies have
proposed some data acquisition and image reconstruction
strategies such as TRACER and GRASP. The reconstruction
of TRACER is sensitive to motion so breath hold is
needed. GRASP is very motion insensitive, but its data
acquisition efficiency is not high enough. In this
study, we aim to investigate a method combining golden
angle variable density spiral data acquisition with
sparse and parallel imaging reconstruction, which could
achieve high spatial and temporal resolution when free
breathing.
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