Temporomandibular joint MRI: a 2-D gradient-echo technique.
Magnetic resonance imaging (MRI) of the temporomandibular joint (TMJ) has been most commonly performed using spin-echo sequences. Gradient-echo sequences have previously been investigated in the context of 3-D and 'dynamic' (pseudo-kinematic) imaging. We have used gradient-echo to improve image quality in static studies with rapid acquisition, high spatial resolution (512 x 512 matrix) and excellent contrast resolution. Using pragmatic methods and a non-randomized study group we have demonstrated a definite advantage to image quality, and thus diagnostic confidence, from the use of a gradient-echo high spatial resolution sequence incorporating split acquisition open mouth views.
Roditi
G H
GH
Department of Diagnostic Radiology, Aberdeen Royal Infirmary, UK.
Duncan
K A
KA
Needham
G
G
Redpath
T W
TW
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008335:Mandibular Condyle / Q000473:pathology; D008875:Middle Aged; D015588:Observer Variation; D012189:Retrospective Studies; D016037:Single-Blind Method; D019224:Temporomandibular Joint Disc / Q000473:pathology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000175:diagnosis*