Yoon-Chul Kim1, John L. Go2, Sara
Banerjee2, Meng Law2, Houchun Harry Hu1,
1Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, United States; 2Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
Dynamic MRI may be useful for assessing temporomandibular joint (TMJ) dysfunction. This application requires sub-millimeter resolution and adequate contrast between the articular disc and surrounding tissue. A gradient echo sequence was optimized by first measuring the T2* values and then calculating the parameters of flip angle, TE, and TR that maximize the CNR efficiency. The dynamics of the TMJ disc was visualized with a 3.2 second temporal resolution, 0.5 0.5 mm2 in-plane spatial resolution using a 6-channel Carotid coil at 3 Tesla.