Abstract #3635
3D MP-RAGE with Distributed Spirals
Dinghui Wang 1 , Zhiqiang Li 1 , and James G. Pipe 1
1
Neuroimaging Research, Barrow Neurological
Institute, Phoenix, Arizona, United States
3D MP-RAGE was implemented with distributed spirals (DS)
to increase scan efficiency and flexibility of scan
parameters. Water and fat were separated and deblurred
using data collected from two interleaved TEs. Data were
acquired with different readout times. Compared to
Cartesian reference images, spiral images showed similar
overall contrast and sharpness, and higher signal to
noise ratio (SNR) despite of shorter scan times. As the
spiral readout time increases, the SNR increases and the
total scan time decreases. The results suggest the
feasibility of 3D DS MP-RAGE with readout time up to
20ms for high-resolution anatomical neuroimaging.
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