Riwei Jin1, Zhi-pei Liang1, and Bradley P. Sutton1
1University of Illinois Urbana-Champaign, Champaign, IL, United States
1University of Illinois Urbana-Champaign, Champaign, IL, United States
We increase the 3D coverage of dynamic speech MRI to 32 slices with 96 mm full thickness with 1.875×1.875× 3mm and temporal resolution of 35 fps by applying sparsly sampled navigators and Partial-Separability model which makes us approahing isotropic resolution with full vocal tract.
Figure 3 Coronal images
of mid-tongue region in 28 frames (about 0.8s) of subject counting ‘Four’
Figure 1. A simplified pulse sequence diagram illustrating (k,
t)-space sampling patterns. The navigator dataset is acquired using a spiral
trajectory and is only acquired once every 4 imaging data acquisitions. The
imaging dataset is acquired using a Cartesian trajectory with random phase and
slice encoding to provide structural quality images.