Monica Tafur MD, Presenter: Nothing to Disclose

Reni Biswas, Abstract Co-Author: Nothing to Disclose

Kyu-Sung Kwack MD, PhD, Abstract Co-Author: Nothing to Disclose

Won Chol Bae PhD, Abstract Co-Author: Nothing to Disclose

Robert Healey, Abstract Co-Author: Nothing to Disclose

Sheronda Statum, Abstract Co-Author: Nothing to Disclose

Jiang Du PhD, Abstract Co-Author: Nothing to Disclose

Christine B. Chung MD, Abstract Co-Author: Nothing to Disclose

The objectives are to review the biomechanical properties of the temporomandibular joint (TMJ) high-resolution pseudo-dynamic and low-resolution dynamic MRI of the TMJ and correlate the biomechanical characteristics of the disc with its MR properties. 1. The TMJ has unique biomechanical characteristics, as the bilateral TMJs must function together under compressive loads while undergoing large-scale movement. 2. Biomechanics of the osseous structures in the normal TMJ are well demonstrated using low-resolution dynamic MRI and involve translation and rotation of the mandibular condyle. 3. Changes in the disc during TMJ motion can be evaluated in high-resolution pseudo-dynamic MRI and include translation of the disc and tissue deformation due to compression. 4. Quantitative MR properties correlate with the biomechanical properties of the disc. There is a significant relation between MR (T2, T2* and UTE T1rho mapping) and indentation stiffness properties of the disc.  

1. Normal biomechanics of the soft tissues of the TMJ on high-resolution sagittal and coronal MRI 2. Normal biomechanics of the osseous structures of the TMJ on low-resolution dynamic acquisition MRI 3. Correlation of biomechanical and MR properties of the TMJ articular disc  

http://abstract.rsna.org/uploads/2014/14006817/14006817_ll5s.pdf

Tafur, M, Biswas, R, Kwack, K, Bae, W, Healey, R, Statum, S, Du, J, Chung, C, Dynamic MR Imaging of the Temporomandibular Joint: Understanding the Joint Biomechanics.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14006817.html