Internal derangements of the temporomandibular joint: diagnosis by direct sagittal computed tomography.

Manzione, James V.; Katzberg, Richard W.; Brodsky, Gilbert; Seltzer, S E; Mellins, Harry Z.

doi:10.1148/radiology.150.1.6689751

Cited by 105 publications

(19 citation statements)

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“…Therefore, overlap of physiologic uptake of the bones can occur, mimicking pathologically increased focal uptake in the images. On the other hand, when the mouth opens, the condyle moves anteriorly out of the glenoid fossa, and the two bony structures become considerably separated [13] so that the overlap in the physiologic uptake of the bones may be reduced.…”

Section: Introductionmentioning

confidence: 99%

Open-Mouth Bone Scintigraphy Is Better than Closed-Mouth Bone Scintigraphy in the Diagnosis of Temporomandibular Osteoarthritis

Park

Song

Cho

et al. 2016

Nucl Med Mol Imaging

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Purpose Closed-mouth bone scintigraphy (CM scan) and closed-mouth single-photon emission computed tomography (CM SPECT) are used for conventional evaluation of osteoarthritis of the temporomandibular joint (TMJ). However, the adequacy of open-mouth bone scintigraphy (OM scan) has not yet been evaluated. Therefore, the purpose of this study was to compare the diagnostic performance of CM scan, CM SPECT, and OM scan. Methods Thirty-six patients with suspicion of an abnormality of the TMJ and who underwent a 99m Tc-HDP CM scan, CM SPECT, and an OM scan were enrolled. The scans were assessed visually for the presence of positive focal uptake in the TMJ. Osteoarthritis was defined as arthralgia plus crepitus or radiologic signs of arthrosis. Results Of 72 TMJs, 21 (29.2 %) were diagnosed with osteoarthritis. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy were 90.5 %, 49.0 %, 42.2 %, 92.6 % and 61.1 % for the CM scan, 81.0 %, 58.8 %, 44.7 %, 88.2 % and 65.3 % for CM SPECT, and 81.0 %, 82.4 %, 65.4 %, 91.3 % and 81.9 % for the OM scan, respectively. The accuracy of the OM scan was higher than that of CM SPECT and the CM scans (p = 0.004 and p < 0.001, respectively). Conclusions The OM scan was more accurate than the conventional CM scan and even CM SPECT for diagnosing TMJ osteoarthritis.

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Section: Introductionmentioning

confidence: 99%

Open-Mouth Bone Scintigraphy Is Better than Closed-Mouth Bone Scintigraphy in the Diagnosis of Temporomandibular Osteoarthritis

Park

Song

Cho

et al. 2016

Nucl Med Mol Imaging

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“…It was reported that, for degenerative arthritis of the TMJ, the detection accuracy represented by the percentage of the joint with a correct diagnosis (true-positive and true-negative diagnosis) can reach 87.5-96.0% with the application of CT imaging. 1,2 Unfortunately, most CT units are large and expensive, and are not readily available to dentists.…”

Section: Introductionmentioning

confidence: 99%

Detection accuracy of condylar bony defects in Promax 3D cone beam CT images scanned with different protocols

Zl¹,

Jg²,

G³

et al. 2013

Dentomaxillofacial Radiology

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Objectives: To investigate and compare the detection accuracy of bony defects on the condylar surface of the temporomandibular joint (TMJ) in cone beam CT (CBCT) images scanned with standard and large view protocols on the same machine. Methods: 21 dry human skulls with 42 TMJs were scanned with the large view and standard view protocols of the CBCT scanner Promax 3D (Planmeca, Helsinki, Finland). Seven observers evaluated all the images for the presence or absence of defects on the surface of the condyle. Using the macroscopic examination of condylar defects as the gold standard, receiver operating characteristic (ROC) analysis was performed. Results: Macroscopic examination revealed that, of the 42 condyles, 18 were normal and 24 had a defect on the surface of the condyles. Areas under the ROC curves for the large view and the standard view group of CBCT images were 0.739 and 0.720, respectively, and no significant difference was found between the two groups of images (p 5 0.902). Neither the interobserver nor the intraobserver variability were significant. Conclusions: The two scanning protocols provided by the CBCT scanner Promax 3D were reliable and comparable with detection of condylar defects.

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“…11 On the other hand, cross-sectional tomography has been shown to have an accuracy of 87.5-96% in revealing structural changes of temporomandibular joint (TMJ). 12 As a result, the introduction of modern CT has allowed the TMJ to be clearly visualized without the interference of nearby anatomical structures. However, the conventional CT concept has been criticized for the high radiation doses used, the high cost, the large space requirements and the high level of skill needed for interpretation.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic accuracy of cone beam computed tomography and conventional multislice spiral tomography in sheep mandibular condyle fractures

Sirin¹,

Güven²,

Horasan³

et al. 2010

Dentomaxillofacial Radiology

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Objectives: The aim of this study was to compare diagnostic accuracy of cone beam CT (CBCT) and multislice CT in artificially created fractures of the sheep mandibular condyle. Methods: 63 full-thickness sheep heads were used in this study. Two surgeons created the fractures, which were either displaced or non-displaced. CBCT images were acquired by the NewTom 3G H CBCT scanner (NIM, Verona, Italy) and CT imaging was performed using the Toshiba Aquillon H multislice CT scanner (Toshiba Medical Systems, Otawara, Japan). Twodimensional (2D) cross-sectional images and three-dimensional (3D) reconstructions were evaluated by two observers who were asked to determine the presence or absence of fracture and displacement, the type of fracture, anatomical localization and type of displacement. The naked-eye inspection during surgery served as the gold standard. Inter-and intra-observer agreements were calculated with weighted kappa statistics. The receiver operating characteristics (ROC) curve analyses were used to compare statistically the area under the curve (AUC) of both imaging modalities. Results: Kappa coefficients of intra-and interobserver agreement scores varied between 0.56 -0.98, which were classified as moderate and excellent, respectively. There was no statistically significant difference between the imaging modalities, which were both sensitive and specific for the diagnosis of sheep condylar fractures. Conclusions: This study confirms that CBCT is similar to CT in the diagnosis of different types of experimentally created sheep condylar fractures and can provide a cost-and doseeffective diagnostic option.

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Internal derangements of the temporomandibular joint: diagnosis by direct sagittal computed tomography.

Cited by 105 publications

References 0 publications

Open-Mouth Bone Scintigraphy Is Better than Closed-Mouth Bone Scintigraphy in the Diagnosis of Temporomandibular Osteoarthritis

Open-Mouth Bone Scintigraphy Is Better than Closed-Mouth Bone Scintigraphy in the Diagnosis of Temporomandibular Osteoarthritis

Detection accuracy of condylar bony defects in Promax 3D cone beam CT images scanned with different protocols

Diagnostic accuracy of cone beam computed tomography and conventional multislice spiral tomography in sheep mandibular condyle fractures

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