title: Dynamic MRI of the TMJ under physical load.
abstract: OBJECTIVE
  The objective of this study was to examine the kinematics of structures of the temporomandibular joint (TMJ) under physiological load while masticating.
  
  
  METHODS
  Radial MRI was chosen as a fast imaging method to dynamically capture the motions of the joint's anatomy. The technique included a golden ratio-based increment angle and a sliding window reconstruction. The measurements were performed on 22 subjects with and without deformation/displacement of the intra-articular disc while they were biting on a cooled caramel toffee.
  
  
  RESULTS
  The reconstructed dynamic images provided sufficient information about the size and localization of the disc as well as the change of the intra-articular distance with and without loading.
  
  
  CONCLUSIONS
  The feasibility of the golden ratio-based radial MRI technique to dynamically capture the anatomy of the TMJ under physical load was demonstrated in this initial study.
authors: Department of Experimental Physics 5, University of Wuerzburg, Wuerzburg, Germany;
authors: A J
authors: AJ
authors: Hopfgartner
authors: O
authors: O
authors: Tymofiyeva
authors: P
authors: P
authors: Ehses
authors: K
authors: K
authors: Rottner
authors: J
authors: J
authors: Boldt
authors: E-J
authors: EJ
authors: Richter
authors: P M
authors: PM
authors: Jakob
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003799:Dental Stress Analysis; D006801:Humans; D004204:Joint Dislocations / Q000473:pathology*; D019028:Magnetic Resonance Imaging, Cine / Q000379:methods*; D008409:Mastication; D008875:Middle Aged; D011446:Prospective Studies; D013704:Temporomandibular Joint / Q000473:pathology*; D019224:Temporomandibular Joint Disc / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000473:pathology*; D055815:Young Adult
keywords: magnetic resonance imaging (MRI); temporomandibular joint (TMJ); temporomandibular joint disc
references: Med Phys. 1983 Sep-Oct;10(5):610-21
references: 6646065
references: IEEE Trans Med Imaging. 1991;10(3):473-8
references: 18222850
references: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Jun;101(6):784-90
references: 16731401
references: Clin Orthop Relat Res. 1989 Jul;(244):3-6
references: 2663289
references: Magn Reson Med. 1998 Nov;40(5):769-82
references: 9797162
references: Ann Anat. 2007;189(4):356-61
references: 17695992
references: Indian J Dent Res. 2012 Jul-Aug;23(4):529-36
references: 23257491
references: J Magn Reson Imaging. 2004 Feb;19(2):145-59
references: 14745747
references: Dtsch Zahnarztl Z. 1991 Nov;46(11):722-6
references: 1817871
references: J Prosthet Dent. 2003 Nov;90(5):503-9
references: 14586314
references: Osteoarthritis Cartilage. 2009 Nov;17(11):1408-15
references: 19477310
references: J Orofac Pain. 2000 Winter;14(1):65-73
references: 11203741
references: IEEE Trans Med Imaging. 2007 Jan;26(1):68-76
references: 17243585
references: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995 Nov;80(5):555-76
references: 8556465
references: J Magn Reson Imaging. 2010 Jan;31(1):101-9
references: 19938046
references: Magn Reson Med. 2000 Feb;43(2):170-6
references: 10680679
references: J Biomech. 2010 Apr 19;43(6):1048-54
references: 20096414
references: Magn Reson Med. 2000 Dec;44(6):825-32
references: 11108618
references: Magn Reson Med Sci. 2007;6(1):15-20
references: 17510538
references: N Engl J Med. 2008 Dec 18;359(25):2693-705
references: 19092154
references: AJR Am J Roentgenol. 1987 Jun;148(6):1165-71
references: 3495142
references: Neuroradiology. 1997 Sep;39(9):661-7
references: 9335066
references: J Biomech. 2009 Mar 11;42(4):405-17
references: 19200995
references: Orthop Rev (Pavia). 2009;1(2):90-93
references: 20890385
references: J Dent Res. 1999 Dec;78(12):1815-20
references: 10598911
references: Clin Oral Investig. 2011 Oct;15(5):737-47
references: 20585815
references: Magn Reson Med. 1995 Nov;34(5):754-61
references: 8544697
references: Magn Reson Med. 2004 Oct;52(4):815-24
references: 15389936
references: Adv Dent Res. 1993 Aug;7(2):137-51
references: 8260001