Document Detail

Visualization of anterior disc displacement in temporomandibular disorders on contrast-enhanced magnetic resonance imaging: comparison with T2-weighted, proton density-weighted, and precontrast T1-weighted imaging.
MedLine Citation:
PMID:  17234545     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare postcontrast T1-weighted imaging (T1WI+) with precontrast T1-weighted (T1WI-), T2-weighted (T2WI), and proton density-weighted imaging (ProWI) in depiction of the anterior disc displacement (ADD) in temporomandibular disorders (TMDs). STUDY DESIGN: A total of 120 joints with TMD were included in this study. Qualitatively, Receiver operating characteristic analysis was performed. Quantitatively, the ratio of the intensity in the retrodiscal tissue to intensity in the disc (intensity ratio) was measured. RESULTS: One reader achieved superior performance in visualization of ADD with T1WI+ than with the other sequences. The other reader showed superiority with T1WI+ rather than T2WI or T1WI-. The intensity ratio on T1WI+ was significantly higher than the intensity ratio on other sequences. On T1WI,+ the intensity ratio in the joints with ADD was significantly higher than that in the joints without ADD. CONCLUSION: Postcontrast T1-weighted imaging can improve the visualization of ADD in TMDs.
Noriaki Tomura; Takahiro Otani; Komei Narita; Ikuo Sakuma; Satoshi Takahashi; Jiro Watarai; Takayoshi Ohnuki
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article     Date:  2006-04-24
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  103     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-01-19     Completed Date:  2007-01-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  260-6     Citation Subset:  D; IM    
Department of Radiology, Akita, Japan.
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MeSH Terms
Analysis of Variance
Area Under Curve
Contrast Media
Dislocations / pathology
Gadolinium DTPA / diagnostic use
Magnetic Resonance Imaging / methods*
ROC Curve
Retrospective Studies
Temporomandibular Joint Disk / pathology*
Temporomandibular Joint Disorders / pathology*
Reg. No./Substance:
0/Contrast Media; 80529-93-7/Gadolinium DTPA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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