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Link to original content: https://pubmed.ncbi.nlm.nih.gov/16677922
3-D sonography for diagnosis of disk dislocation of the temporomandibular joint compared with MRI - PubMed Skip to main page content
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Comparative Study
. 2006 May;32(5):633-9.
doi: 10.1016/j.ultrasmedbio.2006.02.1401.

3-D sonography for diagnosis of disk dislocation of the temporomandibular joint compared with MRI

Constantin A Landes  1 , Wojciech A Goral, Robert Sader, Martin G Mack
Affiliations
Comparative Study

3-D sonography for diagnosis of disk dislocation of the temporomandibular joint compared with MRI

Constantin A Landes et al. Ultrasound Med Biol. 2006 May.

Abstract

This study determines the value of three-dimensional (3-D) sonography for the assessment of disk dislocation of the temporomandibular joint (TMJ). Sixty-eight patients (i.e.,136 TMJ) with clinical dysfunction were examined by 272 sonographic 3-D scans. An 8- to 12.5-MHz transducer, angulated by step-motor, was used after picking a volume box on 2-D scan; magnetic resonance imaging followed immediately. Every TMJ was scrutinized in closed- and open-mouth position for normal or dislocated disk position. Fifty-three patients had complete data sets, i.e., 106 TMJ, 212 examinations. Sonographic examination took 5 min, with 74% specificity (62% closed-mouth; 85% open-mouth); sensitivity 53% (62/43%); accuracy 70% (62/77%); positive predictive value 49% (57/41%); and negative predictive value 77% (67/86%). This study encourages more research on the diagnostic capacity of 3-D TMJ sonography, with the advantage of multidimensional joint visualization. Although fair in specificity and negative predictive value, sensitivity and accuracy may ameliorate with future higher-sound frequency, real-time 3-D viewing and automated image analysis.

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