Andreas
Johannes Hopfgartner1, Olga Tymofiyeva1, Philipp Ehses1,
Kurt Rottner2, Julian Boldt2, Ernst-Jrgen Richter2,
Peter Michael Jakob1
1Experimental Physics 5, University of
Wrzburg, Wrzburg, Bavaria, Germany; 2Prosthodontics, Dental
School, University of Wrzburg, Wrzburg, Bavaria, Germany
Static
or pseudo-dynamic MRI of the TMJ does not allow for full analysis of the disc
deformation and displacement during the mandibular motion. The purpose of
this study was to develop a dynamic MRI technique for measurement of the TMJ
with an arbitrary reconstruction window. The method uses a radial trajectory
with a constant azimuthal profile spacing of 111.246. Two kinds of
measurements were performed: opening and closing of the mouth and biting into
a cooled chocolate-covered caramel. Reconstruction was performed with a
sliding window method and a KWIC filter. The method is suitable for diagnosis
and therapy planning.