Disk Displacement of the Temporomandibular Joint: Sonography Versus MR  Imaging

Emshoff, Rüdiger; Jank, Siegfried; Bertram, Stefan; Rudisch, Ansgar; Bodner, Gerd

doi:10.2214/ajr.178.6.1781557

Cited by 73 publications

(85 citation statements)

References 19 publications

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“…The normal disc appeared as hypo-echogenic band between the hyper-echogenic bands of the mandibular condyle and the articular eminence. Few studies reported that ultrasound differentiate between the articular disc and capsule, and the two hyper-echogenic lines are related to the condylar head and articular eminence cortices and the hypoechoic area between them produced by the articular disc [26,28]. Other studies added that the disc was surrounded by hard tissues of the condyle and temporal bone.…”

Section: Discussionmentioning

confidence: 99%

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Assessment of articular disc displacement of temporomandibular joint with ultrasound

et al. 2014

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Purpose To assess pattern of articular disc displacement in patients with internal derangement (ID) of temporomandibular joint (TMJ) with ultrasound. Materials and methods Prospective study was conducted upon 40 TMJ of 20 patients (3 male, 17 female with mean age of 26.1 years) with ID of TMJ. They underwent highresolution ultrasound and MR imaging of TMJ. The MR images were used as the gold standard for calculating sensitivity, specificity, accuracy, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (PLR), and negative likelihood ratio (NLR) of ultrasound for diagnosis of anterior or sideway displacement of the disc. Results The anterior displaced disc was seen in 26 joints at MR and 22 joints at ultrasound. The diagnostic efficacy of ultrasound for anterior displacement has sensitivity of 79.3 %, specificity of 72.7 %, accuracy of 77.5 %, PPV of 88.5 %, NPV of 57.1 %, PLR of 2.9 and NLR of 0.34. The sideway displacement of disc was seen in four joints at MR and three joints at ultrasound. The diagnostic efficacy of ultrasound for sideway displacement has a sensitivity of 75 %, specificity of 63.6 %, accuracy of 66.7 %, PPV of 42.8, NPV of 87.5 %, PLR of 2.06, and NLR of 0.39. Conclusion We concluded that ultrasound is a non-invasive imaging modality used for assessment of anterior and sideway displacement of the articular disc in patients with ID of TMJ.Riassunto Scopo Valutare i pattern della dislocazione del disco articolare nei pazienti con squilibrio interno (ID) dell'articolazione temporo-mandibolare (ATM) con l'ecografia. Materiale e metodi E' stato condotto uno studio prospettico su 40 ATM di 20 pazienti (3 maschi, 17 femmine, con età media di 26,1 anni) con ID della TMJ. Tutti sono stati sottoposti ad ecografia ad alta risoluzione e RM della TMJ. La RM è stati utilizzata come il gold standard per il calcolo di sensibilità, specificità, accuratezza, valore predittivo positivo (PPV), valore predittivo negativo (NPV), rapporto di probabilità positivo (PLR) e rapporto di probabilità negativo (NLR) dell'ecografia nella la diagnosi di dislocazione anteriore o lateralmente del disco. Risultati Il disco appariva dislocato anteriormente in 26 ATM con la MR e in 22 con l'ecografia. L'efficacia diagnostica dell'ecografia nella diagnosi di dislocazione anteriore aveva sensibilità del 79,3 %, specificità del 72,7 %, accuratezza del 77,5 %, valore predittivo positivo del 88,5 %, NPV di 57,1 %, PLR di 2,9 e NLR di 0,34. Il dislocamento laterale del disco è stata osservato in 4 casi con MR e 3 con ecografia. L'efficacia diagnostica dell'ecografia per lo spostamento laterale aveva sensibilità del 75 %, specificità del 63,6 %, accuratezza del 66,7 %, PPV di 42,8, NPV di 87,5 %, PLR di 2.06 e NLR di 0,39. Conclusioni Abbiamo concluso che l'ecografia è una metodica di imaging non invasiva che può essere utilizzata per la valutazione delle dislocazioni anteriori e laterali del disco articolare nei pazienti con ID di TMJ.

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Section: Discussionmentioning

confidence: 99%

“…High-resolution ultrasound was used for assessment of the anterior disc displacement of TMJ [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. All these studies discuss the anterior displacement of the TMJ without assessment of sideway displacement of the disc.…”

Section: Introductionmentioning

confidence: 99%

Assessment of articular disc displacement of temporomandibular joint with ultrasound

et al. 2014

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“…Joint effusions can be detected indirectly by measuring the distance between the two articular surfaces/ capsular width [21,25,27].…”

Section: Discussionmentioning

confidence: 99%

Assessment of TMJ Disorders Using Ultrasonography as a Diagnostic Tool: A Review

Kundu¹

2013

JCDR

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“…3,4 However, one of the criticisms of TMJ MR imaging is its inability to provide a dynamic assessment of the joint, relative to other technologies such as axiography 5 or sonography. 6 The aim of this study was to evaluate our initial experience with a dynamic half-Fourier acquired single-shot turbo spin-echo (HASTE) MR imaging technique, using parallel imaging, in comparison with static sagittal oblique Pd imaging.…”

mentioning

confidence: 99%

Dynamic Sagittal Half-Fourier Acquired Single-Shot Turbo Spin-Echo MR Imaging of the Temporomandibular Joint: Initial Experience and Comparison with Sagittal Oblique Proton-Attenuation Images

Wang

Mulholland²,

Pramanik³

et al. 2007

American Journal of Neuroradiology

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Disk Displacement of the Temporomandibular Joint: Sonography Versus MR Imaging

Abstract: When real-time images are interpreted by expert radiologists, dynamic sonography performed during maximal mandibular range of motion may provide valuable information about disk displacement of the TMJ.

Cited by 73 publications

References 19 publications

Assessment of articular disc displacement of temporomandibular joint with ultrasound

Assessment of articular disc displacement of temporomandibular joint with ultrasound

Assessment of TMJ Disorders Using Ultrasonography as a Diagnostic Tool: A Review

Dynamic Sagittal Half-Fourier Acquired Single-Shot Turbo Spin-Echo MR Imaging of the Temporomandibular Joint: Initial Experience and Comparison with Sagittal Oblique Proton-Attenuation Images

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