Increased Apparent Diffusion Coefficient Values of Masticatory Muscles on Diffusion-Weighted Magnetic Resonance Imaging in Patients With Temporomandibular Joint Disorder and Unilateral Pain

Sawada, Eri; Kaneda, Takashi; Sakai, Osamu; Kawashima, Y; Ito, Kotaro; Hirahara, Naohisa; Iizuka, Norihito

doi:10.1016/j.joms.2019.04.031

Cited by 10 publications

(8 citation statements)

References 20 publications

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“…50 Recently, Sawada et al reported the feasibility of DWI as a subjective and quantitative approach in assessing the pathological changes of masticatory muscles in patients with TMD. 51 In particular, they found the mean ADC values of the masticatory muscles of the pain side were significantly higher than those of the contralateral painless side (Fig. 6), and thus indicating that the myalgia of masticatory muscles may be attributed to an edematous change.…”

Section: Applicationsmentioning

confidence: 91%

“…The clinical diagnosis of muscular pain in TMD is on the basis of muscle palpation or surface electromyography, which is objective and unavailable to masticatory muscles with a deep anatomical position 50 . Recently, Sawada et al reported the feasibility of DWI as a subjective and quantitative approach in assessing the pathological changes of masticatory muscles in patients with TMD 51 . In particular, they found the mean ADC values of the masticatory muscles of the pain side were significantly higher than those of the contralateral painless side (Fig.…”

Section: Diffusion‐weighted Imagingmentioning

confidence: 99%

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MRI of Temporomandibular Joint Disorders: Recent Advances and Future Directions

Xiong

Zheng

Tang

et al. 2020

Magnetic Resonance Imaging

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Temporomandibular joint disorders (TMDs) are a prevalent disease covering pain and dysfunction of temporomandibular joints and masticatory muscles, which can be detrimental to quality of life. Magnetic resonance imaging (MRI) is a powerful and noninvasive tool for the imaging and understanding of TMD. With the recent technical development of dynamic and quantitative MRI techniques, including diffusion‐weighted imaging, T2 mapping, and ultrashort/zero echo time, it is now feasible in TMD imaging and has been preliminarily investigated with promising results. In this review we will discuss the recent advances of MRI techniques in TMD and its future directions, and hope to highlight the scientific potential and clinical value of novel MRI techniques in diagnosing and treating TMD. Level of Evidence 4 Technical Efficacy Stage 3

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Section: Applicationsmentioning

confidence: 91%

Section: Diffusion‐weighted Imagingmentioning

confidence: 99%

MRI of Temporomandibular Joint Disorders: Recent Advances and Future Directions

Xiong

Zheng

Tang

et al. 2020

Magnetic Resonance Imaging

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“…The use of diffusion-weighted MRI showed that it could be useful to evaluate myalgia of the masticatory muscles. 34 Electromyography is another method which can help to make a proper diagnosis, exclude other pathologies and measure the severity of pain. 34 It is worth noting that TMD is a complex condition in which an interplay of several factors and overlap of other conditions can be observed.…”

Section: Discussionmentioning

confidence: 99%

“… 34 Electromyography is another method which can help to make a proper diagnosis, exclude other pathologies and measure the severity of pain. 34 It is worth noting that TMD is a complex condition in which an interplay of several factors and overlap of other conditions can be observed. Complete assessment of the patient requires checking the conditions of temporomandibular joint which can be done with ultrasound 35 or magnetic resonance.…”

Section: Discussionmentioning

confidence: 99%

Great potential of ultrasound elastography for the assessment of the masseter muscle in patients with temporomandibular disorders. A systematic review

Olchowy

Więckiewicz

Winocur

et al. 2020

Dentomaxillofacial Radiology

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Objective: To summarize the available evidence on the use of elastography in the assessment of the masseter muscle in healthy individuals and patients with masseter muscle disorders. Methods: Systematic literature review has been performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Results: 16 of 142 studies identified were analyzed. Elastography was used in seven studies. Heterogeneity was observed in terms of study protocols, devices, patients, units of measure, and results. Elasticity values showed a correlation between the left and right masseter muscle side in healthy people, but not in patients with temporomandibular disorders (TMDs). Elasticity values increased in TMD and were correlated with the severity of TMD symptoms. Phantom studies proved the high reliability of elastography. Conclusion: Elastography is a promising tool for the assessment of the masseter muscle elasticity, but the evidence is insufficient. Studies on larger groups are needed to determine the accuracy of elastography to characterize masticatory muscle disorders.

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“…The apparent diffusion coefficient (ADC) values of the masticatory muscles on the pain side proved to be significantly greater than those on the contralateral side without pain. Even quantitative validation of masticatory muscle myalgia should be possible [30].…”

Section: Discussionmentioning

confidence: 99%

Temporal Tendinitis in Craniomandibular Dysfunction (CMD) – Does it Really Exist? A Temporomandibular MRI Investigation

Stimmer

Grill

Waschulzik

et al. 2022

Rofo

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Objectives The aim of the study was to analyze the role of temporal muscle and particularly tendon pathology in patients suffering from craniomandibular dysfunction (CMD) using magnetic resonance imaging. Materials and Methods Retrospective analysis of MRI examinations was carried out with regard to temporal muscle fibrosis and fatty degeneration and particularly temporal tendon rupture, thickening, and degenerative signal alterations. Descriptive statistics and the Mann-Whitney U-test were used for statistical evaluation. Results Structural lesions of temporal muscle parenchyma were the absolute exception. PD hyperintensity, pronounced contrast enhancement, or peritendinous fluid collections along the temporal tendon were found only to a small extent, and a (partial) rupture occurred in only one case. The tendon diameter showed only slight variability. The Mann-Whitney U-test provided no results indicating a causal connection between degenerative joint or disc disease and temporal tendon pathology. Conclusion A large sample of 128 magnetic resonance imaging examinations provided no evidence of a major role of temporal tendinitis in clinical CMD syndrome. Key Points: Citation Format

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Increased Apparent Diffusion Coefficient Values of Masticatory Muscles on Diffusion-Weighted Magnetic Resonance Imaging in Patients With Temporomandibular Joint Disorder and Unilateral Pain

Cited by 10 publications

References 20 publications

MRI of Temporomandibular Joint Disorders: Recent Advances and Future Directions

MRI of Temporomandibular Joint Disorders: Recent Advances and Future Directions

Great potential of ultrasound elastography for the assessment of the masseter muscle in patients with temporomandibular disorders. A systematic review

Temporal Tendinitis in Craniomandibular Dysfunction (CMD) – Does it Really Exist? A Temporomandibular MRI Investigation

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