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Abstract #1229

Combined Radial Acquisition and Regularized Reconstruction for Accelerated Vocal Tract Imaging

Michael Burdumy1, 2, Matthias Echternach2, Bernhard Richter2, Jan G. Korvink3, 4, Jrgen Hennig1, Maxim Zaitsev1

1Medical Physics, University Medical Center Freiburg, Freiburg, Germany; 2Department of Musicians' Medicine, University Medical Center Freiburg, Freiburg, Germany; 3IMTEK, University of Freiburg, Freiburg, Germany; 4FRIAS, Freiburg, Germany

MRI has become a useful instrument to investigate movement patterns in the vocal tract during singing. In our study we present a new method to acquire and reconstruct images of the vocal tract during singing with an improved temporal resolution. We compare images from a Cartesian gradient echo sequence with images acquired with a radial gradient echo sequence. Data is reconstructed using a SENSE-like conjugated gradient method with low resolution sensitivity maps that are subsequently reconstructed directly from the echoes.