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Abstract #0607

High-Frame-Rate Full-Vocal-Tract Imaging Based on the Partial Separability Model and Volumetric Navigation

Maojing Fu1, 2, Bo Zhao1, 2, Joseph Holtrop, 23, Jamie Perry4, David Kuehn5, Zhi-Pei Liang1, 2, Bradley P. Sutton, 23

1Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States; 2Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States; 3Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States; 4Department of Communication Sciences and Disorders, East Carolina University, Greenville, NC, United States; 5Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, Urbana, IL, United States

Dynamic MRI can provide quantitative assessment on the anatomy and dynamics of the vocal tract, but usually suffers from poor spatial or temporal resolution or poor spatial coverage. This work presents full-vocal-tract dynamic imaging at a frame rate of 102.2 fps with a 2.2 mm 2.2 mm 6.5 mm spatial resolution. It is performed by incorporating an optimized 3D volumetric navigation scheme into a Partial Separability (PS) model-based imaging method. Subtle temporal behaviors of the articulator motion and fine 3D anatomy of the vocal tract are well captured and analyzed.

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Keywords

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