Magnetic resonance image of internal derangement of the temporomandibular joint.
Sixteen temporomandibular joints (TMJ) were examined by a high resolution magnetic resonance (MR) imager. Multisection 3.5 mm thick sagittal and coronal images were obtained by 1.0-T MR system and spin-echo sequence (TR = 800 msec, TE = 20 msec). MR provided useful information about meniscal position, morphology and histology. In our study, the MR of the 16 TMJ showed normal finding in two cases and abnormal findings could be differentiated into anterior disc displacement with reduction (8 cases), anterior disc displacement without reduction (3 cases) and bony change (3 cases). MR imaging can produce high-quality tomographic images with good demonstration of the internal structures of TMJ. As it is a noninvasive technique involving no ionizing radiation, MR imaging has been shown to be a useful tool for the demonstration of internal changes in TMJ.
Jih
C H
CH
Department of Radiology, Taichung Veterans General Hospital, Taiwan, Republic of China.
Chang
C Y
CY
Lee
S K
SK
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis*