1,721,007 research outputs found
Valore predittivo dei sintomi clinici per la diagnosi di versamento intrarticolare alla risonanza magnetica.
No full textIs clinical assessment valid for the diagnosis of temporomandibular joint disk displacement?
No full textAIM: The aim of this work was to evaluate the predictive value of clinical examination for magnetic resonance imaging (MRI) findings of temporomandibular joint (TMJ) disk position abnormalities. METHODS: Participants in this study were 51 consecutive patients with signs and symptoms of temporomandibular disorders (TMD). All 102 temporomandibular joints (TMJ) were evaluated to detect disk position abnormalities by means of a standardized clinical assessement according to Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) and MRI performed by a blinded radiologist at the Section of Prosthetic Dentistry, University of Pisa, Italy. The accuracy of clinical assessment was evaluated with respect to MRI. RESULTS: Clinical assessment showed a good predictive value (PV) for the diagnosis of normal disk position (86.2%) and an acceptable PV for the diagnosis of disk displacement with reduction (70.3%), while it seems less accurate in predicting MRI diagnosis of disk displacement without reduction. The overall agreement between clinical RDC/TMD examination and MRI for the evaluation of disk position was 77.3%. CONCLUSION: Clinical RDC/TMD examination proved to be accurate in detecting normal disk position and disk displacement with reduction but not reliable in predicting MRI diagnosis of disk displacement without reduction in the temporomandibular joint
Ultrasound assessment of increased capsular width as a predictor of temporomandibular joint effusion
No full textObjectives: The aim of this study was to evaluate whether an increased capsular width evidenced by ultrasound (US) could be an indirect marker of temporomandibular joint (TMJ) effusion. Methods: 138 TMJs were evaluated by US and magnetic resonance imaging (MRI) by two blinded calibrated investigators. US measures of capsular width (in mm) and MRI diagnosis of TMJ effusion (presence/absence) were used to perform a receiver operating characteristic (ROC) curve analysis in order to assess the most accurate cut-off value of capsular width that was able to discriminate between joints with and without MRI effusion. Results: Diagnostic accuracy of US to detect MRI-depicted TMJ effusion was good (area under the ROC curve = 0.817). US sensitivity was high for values below the cut-off value of 1.950 mm (true positive rate (TPR) = 83.9%; false positive rate (FPR) = 26.3%), while specificity was high for values above the cut-off value of 2.150 mm (TPR = 71.0%; FPR = 11.8%). Conclusions: Analysis of ROC curve appears to reveal that the critical area is around the 2 mm value for TMJ capsular width. These findings need to be refined by further studies assessing the smallest detectable difference in capsular width, with attention to reliability of interobserver observations
Ruolo dell’ultrasonografia nella diagnosi di dislocazione discale e di versamento nell’articolazione temporomandibolare
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Comparison between clinical examination and MRI findings of temporomandibular joint effusion.
No full textApplicabilità ed affidabilità della tecnica ultrasonografica nello studio dell’articolazione temporo-mandibolare
No full textAccuratezza dell’esame clinico nella diagnostica della posizione discale nell’articolazione temporomandibolare.
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