Magnetresonanztomographie (MRT) des Kiefergelenkes: Einfluss auf Therapieentscheidung und Übereinstimmung zweier Auswerter

Vahlensieck, Martin; Okweschokwu, S.; Greven, Markus

doi:10.1055/s-2002-35344

Cited by 7 publications

(6 citation statements)

References 9 publications

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“…The highest interobserver agreement among the seven observers was found for the variable combination "disk position at closed-mouth position and at maximum opening in the sagittal plane." The kappa value, however, was lower than the values found in studies by Nebbe et al, 7 Tasaki et al, 6 and Orsini et al, 10,11 but similar to the value found in the study by Vahlensieck et al 20 As in the study by Nebbe et al, 7 the greatest agreement was found for the category "anterior disk position without reduction." Nebbe et al 7 found very good agreement and we found good agreement among observers for this category.…”

Section: Discussionsupporting

confidence: 64%

Magnetic resonance imaging of the temporomandibular joint: a study of inter- and intraobserver agreement

et al. 2004

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Objective. The purpose of this study was to estimate the inter-and intraobserver agreement for interpreting magnetic resonance (MR) images of the temporomandibular joint (TMJ). Methods. The study was based on MR images of 30 TMJs. The images were interpreted by seven observers for disk configuration, disk position, joint fluid, bone marrow changes, and diagnosis. The observers were not calibrated. Kappa statistics were used. Results. The kappa values were, for interobserver agreement of disk configuration, 0.10; for disk position in the sagittal plane with closed mouth, 0.35; for a combination of closed mouth and open mouth, 0.44; for disk position in the coronal plane, 0.17; for joint fluid, 0.36; for bone marrow changes, 0.01; and for diagnosis, 0.39. Intraobserver agreement was generally higher than interobserver agreement. Conclusion. Agreement on disk position in the sagittal plane, on presence and amount of joint fluid, and on diagnosis was fair to moderate. Agreement on disk configuration, on disk position in the coronal plane, and on bone marrow changes was poor.

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Section: Discussionsupporting

confidence: 64%

Magnetic resonance imaging of the temporomandibular joint: a study of inter- and intraobserver agreement

et al. 2004

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“…In the axially corrected coronal plane, the disc is not centred between the condyle and eminence in either the medial or the lateral parts Disc not visible: Neither signal intensity nor outline make it possible to define a structure as the disc Several studies of observer agreement at MRI of the TMJ have been published. [10][11][12][13][14][15][16][17] It is difficult to compare the studies as different criteria were used, for instance for disc position. Widmalm et al 16 concluded that a diagnosis of TMD based on MRI examination protocols made by a single examiner should not be accepted, as the diagnosis may be misleading.…”

Section: Discussionmentioning

confidence: 99%

Web-based calibration of observers using MRI of the temporomandibular joint

Hellén‐Halme¹,

Hollender²,

Janda³

et al. 2012

Dentomaxillofacial Radiology

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Objectives: Research diagnostic criteria for temporomandibular disorders (RDC/TMDs) were proposed in 1992 with the aim of standardizing and testing methods for diagnosing TMDs. RDC/TMDs have so far been lacking standardized methods for imaging and criteria for imaging diagnosis of disorders of the temporomandibular joint (TMJ). Criteria for disorders of the TMJ have recently been proposed for MRI. The aim of this study was to publish MR images of the TMJ on the web and to test the agreement of five observers using the criteria. Methods: 20 cases of MRI of the TMJ were published on the web together with the criteria. The MR images were taken in closed and open mouth positions, and sagittal and coronal views. Five observers diagnosed disc position, disc shape, joint effusion and loose calcified bodies in the TMJ. Results: In all cases except one, three or more observers agreed upon the diagnosis. All agreed on whether a loose calcified body was present or not. The second best agreement was obtained for disc position in the sagittal view, where all observers agreed in 16 of the 20 cases. For disc position in the coronal view and the evaluation of the disc shape, observer agreement was lower. Conclusion: Criteria were useful in order to standardize and simplify evaluation and thereby probably increase the diagnostic outcome among different observers for MRI of the TMJ. We recommend that the criteria be used internationally to facilitate comparisons between different studies.

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“…Dabei kann es zum direkten Kontakt der beiden Knochen und zu einer Perforation der bilaminären Zone kommen [6]. [29]. Beim Vergleich der klinischen Befundung mit MRT-Aufnahmen zeigt sich eine schlechte Überein-stimmung, die in der Regel auf falsch negativen klinischen Befunden beruht.…”

Section: Alterunclassified

“…Dabei ist die Untersucherabhängigkeit der Kiefergelenk-MRT bei den verschiedenen Strukturen sehr unterschiedlich. So wurden gute Übereinstimmungen zwischen verschiedenen Untersuchern bei Parametern wie der Diskus-und Condylusposition beschrieben, während die Konkordanz bei Parametern wie der Signalintensität des Diskus und der bilaminä-ren Zone deutlich schlechter war [29]. Die genaue Klassifikation von Kiefergelenkveränderungen ist aber von hoher klinischer Relevanz, da ein breites Spektrum an konservativen (verschiedene Schienen, Physiotherapie, medikamentös) und operativen (vor allem in den Benelux-Staaten, Japan und den USA) Therapiemög-lichkeiten besteht [33 -35].…”

Section: Alterunclassified

Morphometrische Analyse des Kiefergelenkes anhand von 320 Gelenken mit der MRT

Griethe²,

Peroz³

et al. 2005

Rofo Fortschr Geb Rontgenstr N

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Magnetresonanztomographie (MRT) des Kiefergelenkes: Einfluss auf Therapieentscheidung und Übereinstimmung zweier Auswerter

Abstract: MRI has a measurable impact on the therapeutic approach to the internal derangement of the TMJ. The position of the disk and condyle can be reproducibly judged, while the signal intensity of the disk and bilaminar zone and the osseous changes are subject to wide observer variations.

Cited by 7 publications

References 9 publications

Magnetic resonance imaging of the temporomandibular joint: a study of inter- and intraobserver agreement

Magnetic resonance imaging of the temporomandibular joint: a study of inter- and intraobserver agreement

Web-based calibration of observers using MRI of the temporomandibular joint

Morphometrische Analyse des Kiefergelenkes anhand von 320 Gelenken mit der MRT

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