Abstract #1433
Sound synchronization and motion compensated reconstruction for speech Cine MRI.
Pierre-Andr Vuissoz 1,2 , Freddy Odille 1,2 , Yves Laprie 3,4 , Emmanuel Vincent 3,5 , and Jacques Felblinger 6,7
1
Imagerie Adaptative Diagnostique et
Interventionnelle, Universit de Lorraine, Nancy,
France,
2
U947,
INSERM, Nancy, France,
3
LORIA,
Universit de Lorraine, Nancy, France,
4
LORIA,
CNRS, Nancy, France,
5
LORIA,
INRIA, Nancy, France,
6
University
Hospital Nancy, Nancy, France,
7
CIC-IT
1433, INSERM, Nancy, France
To construct an articulatory model of the vocal tract 10
sentences were pronounced and recorded at 3T using
balanced-SSFP multiphase sequences with a resolution of
256x256. An optical microphone was used to record the
speech during an 80 second scan. A noise reduction
algorithm is applied before aligning each acoustic
sentence onto a median template sentence. A cine loop of
128 images for each sentence is reconstructed using a
motion compensated sliding window algorithm (80 ms)
producing a reconstructed frame rate above 100 Hz. Each
cine loop enables the delineation of the vocal tract
with sufficient spatial and temporal resolution.
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