Abstract

The overall objective of this study is to examine the potential of MR surface coil imaging to detect and characterize small joint pathology modeled from TMJ internal derangements related to disc displacement. This proposal will assess disc and posterior ligament in vitro MR parameters of surgically excised tissue with comparison to detailed histopathology. An examination of the capability of MR to predict changes in the TMJ disc and posterior ligament during in vivo patient imaging is proposed along with an application of this information to optimize imaging pulse sequences. This will be accomplished prospectively by the application of dual surface coils with active decoupling during clinical imaging. The diagnostic accuracy of MR surface coil images of the TMJ will be compared to cryosectional post-mortem morphology. The diagnostic agreement between TMJ arthrography (the current standard) and MR surface coil images will be studied along with clinical links between signs and symptoms of TMJ internal derangements and MR surface coil diagnoses. The successful performance of this investigation should provide useful models that examine fundamental MR clinical applications to other small anatomic parts or organ systems.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Dental & Craniofacial Research (NIDCR)
Type
Research Project (R01)
Project #
5R01DE008059-02
Application #
3221847
Study Section
Diagnostic Radiology Study Section (RNM)
Project Start
1987-05-01
Project End
1989-04-30
Budget Start
1988-05-01
Budget End
1989-04-30
Support Year
2
Fiscal Year
1988
Total Cost
Indirect Cost

  Institution

Name
University of Rochester
Department
Type
School of Medicine & Dentistry
DUNS #
208469486
City
Rochester
State
NY
Country
United States
Zip Code
14627

  Publications

Katzberg, R W; Westesson, P L; Tallents, R H et al. (1996) Orthodontics and temporomandibular joint internal derangement. Am J Orthod Dentofacial Orthop 109:515-20
Katzberg, R W; Westesson, P L; Tallents, R H et al. (1996) Anatomic disorders of the temporomandibular joint disc in asymptomatic subjects. J Oral Maxillofac Surg 54:147-53;discussion 153-5
Tasaki, M M; Westesson, P L; Isberg, A M et al. (1996) Classification and prevalence of temporomandibular joint disk displacement in patients and symptom-free volunteers. Am J Orthod Dentofacial Orthop 109:249-62
Tasaki, M M; Westesson, P L; Kurita, K et al. (1993) Magnetic resonance imaging of the temporomandibular joint. Value of axial images. Oral Surg Oral Med Oral Pathol 75:528-31
Tasaki, M M; Westesson, P L; Raubertas, R F (1993) Observer variation in interpretation of magnetic resonance images of the temporomandibular joint. Oral Surg Oral Med Oral Pathol 76:231-4
Tasaki, M M; Westesson, P L (1993) Temporomandibular joint: diagnostic accuracy with sagittal and coronal MR imaging. Radiology 186:723-9
Westesson, P L (1993) Reliability and validity of imaging diagnosis of temporomandibular joint disorder. Adv Dent Res 7:137-51
Westesson, P L; Paesani, D (1993) MR imaging of the TMJ. Decreased signal from the retrodiskal tissue. Oral Surg Oral Med Oral Pathol 76:631-5
Paz, M E; Carter, L C; Westesson, P L et al. (1990) CT density of the TMJ disk: correlation with histologic observations of hyalinization, metaplastic cartilage, and calcification in autopsy specimens. Am J Orthod Dentofacial Orthop 98:354-7
Hansson, L G; Westesson, P L; Katzberg, R W et al. (1989) MR imaging of the temporomandibular joint: comparison of images of autopsy specimens made at 0.3 T and 1.5 T with anatomic cryosections. AJR Am J Roentgenol 152:1241-4

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