Evaluation of diffusion parameters and T<sub>2</sub> values of the masseter muscle during jaw opening, clenching, and rest

Shiraishi, T; Chikui, Toru; Inadomi, Daisuke; Kagawa, Toyohiro; Yoshiura, Kazunori; Yuasa, Kenji

doi:10.1258/ar.2011.110136

Cited by 6 publications

(7 citation statements)

References 26 publications

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“…Thereafter, it was hypothesized that changes in joint position, which lead to muscle shortening or lengthening, would lead to changes in muscle architecture and therefore in DTI parameters as well. For the ankle this was addressed in several studies, of which six reported values for the tibialis anterior muscle and five dealt with the medial gastrocnemius muscle. Changes in DTI parameters were linked to increased cell diameter in shortened muscles, changes in extra and intracellular fluids, and postexercise effects (Table ).…”

Section: Feasibility Studies and Reported Variances In Healthy Skeletmentioning

confidence: 99%

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Techniques and applications of skeletal muscle diffusion tensor imaging: A review

Oudeman

Nederveen

Strijkers

et al. 2015

J. Magn. Reson. Imaging

150

153

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Diffusion tensor imaging (DTI) is increasingly applied to study skeletal muscle physiology, anatomy, and pathology. The reason for this growing interest is that DTI offers unique, noninvasive, and potentially diagnostically relevant imaging readouts of skeletal muscle structure that are difficult or impossible to obtain otherwise. DTI has been shown to be feasible within most skeletal muscles. DTI parameters are highly sensitive to patient-specific properties such as age, body mass index (BMI), and gender, but also to more transient factors such as exercise, rest, pressure, temperature, and relative joint position. However, when designing a DTI study one should not only be aware of sensitivity to the above-mentioned factors but also the fact that the DTI parameters are dependent on several acquisition parameters such as echo time, b-value, and diffusion mixing time. The purpose of this review is to provide an overview of DTI studies covering the technical, demographic, and clinical aspects of DTI in skeletal muscles. First we will focus on the critical aspects of the acquisition protocol. Second, we will cover the reported normal variance in skeletal muscle diffusion parameters, and finally we provide an overview of clinical studies and reported parameter changes due to several (patho-)physiological conditions.

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Section: Feasibility Studies and Reported Variances In Healthy Skeletmentioning

confidence: 99%

“…" (19-21, 24, 110, 112) # (21) " (20,24) 5 (21) # (19,110,111) Increased/decreased cell diameter in shortened/elongated muscles. Changed composition in extra and intracellular fluids.…”

Section: Muscle Elongationmentioning

confidence: 99%

Techniques and applications of skeletal muscle diffusion tensor imaging: A review

Oudeman

Nederveen

Strijkers

et al. 2015

J. Magn. Reson. Imaging

150

153

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“…They concluded that MTC imaging strongly reflected edematous changes in masseter muscle, possibly related to masseter muscle myalgia. Shiraishi et al examined changes in the diffusion parameters of the masseter muscles in 11 healthy volunteers during jaw opening and clenching on diffusion-tensor imaging [36]. Ariji et al assessed edematous changes in the masseter muscles of 10 healthy volunteers caused by low-level static contraction on T2-weighted interactive decomposition of water and fat with echo asymmetry and least-square estimation (IDEAL) water images [37].…”

Section: Resultsmentioning

confidence: 99%

“…In the recent years, studies using MRI and sonography in patients with masticatory muscle myalgia have frequently been reported, and the newly developed technologies have been introduced [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38]. Muscles after treatment in those patients also have been evaluated using MRI and sonography [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance and sonographic imagings of masticatory muscle myalgia in temporomandibular disorder patients

Ariji

2017

Japanese Dental Science Review

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SummaryThis article reviews recently published studies investigating the MRI and sonographic diagnosis of masticatory muscle myalgia in temporomandibular disorder patients. The MRI and sonographic features of muscle after treatment are also discussed. Literature published within the last 15 years was obtained from the PubMed database using the following Mesh terms: magnetic resonance imaging (MRI) or sonography, masticatory muscle pain, and treatment. MRI and sonography enable accurate visualization and evaluation of the masticatory muscles, thereby increasing our understanding of pathology and cause of pain associated with these muscles. Although therapeutic efficacy is often evaluated based on clinical findings, MR and sonographic imaging studies may also be valuable.

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“…Diffusion-weighted imaging and diffusion tensor imaging methods can be used to evaluate changes that accompany skeletal muscle contraction [119]. The coefficients for diffusion of the masseter muscles are sensitive to change by clenching—one possible cause of TMDs [120].…”

Section: Myositis and Muscle Edema/contracture-related Myofascial Paimentioning

confidence: 99%

The usefulness of diagnostic imaging for the assessment of pain symptoms in temporomandibular disorders

Suenaga

Nagayama

Nagasawa

et al. 2016

Japanese Dental Science Review

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SummaryThe causes of pain symptoms in the temporomandibular joint (TMJ) and masticatory muscle (MM) regions may not be determined by clinical examination alone. In this review, we document that pain symptoms of the TMJ and MM regions in patients with temporomandibular disorders (TMDs) are associated with computed tomography and magnetic resonance (MR) findings of internal derangement, joint effusion, osteoarthritis, and bone marrow edema. However, it is emphasized that these imaging findings must not be regarded as the unique and dominant factors in defining TMJ pain. High signal intensity and prominent enhancement of the posterior disk attachment on fat saturation T2-weighted imaging and dynamic MR imaging with contrast material are closely correlated with the severity of TMJ pain. Magnetic transfer contrast, MR spectroscopy, diffusion tensor imaging, and ultrasonography findings have helped identify intramuscular edema and contracture as one of the causes of MM pain and fatigue. Recently, changes in brain as detected by functional MR neuroimaging have been associated with changes in the TMJ and MM regions. The thalamus, the primary somatosensory cortex, the insula, and the anterior and mid-cinglate cortices are most frequently associated with TMD pain.

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Evaluation of diffusion parameters and T₂ values of the masseter muscle during jaw opening, clenching, and rest

Abstract: The eigenvalues for diffusion of the MM were sensitive to jaw position. The recruitment of muscle fibers, specific to jaw position, reflects the differences in changes in muscle diffusion parameters.

Cited by 6 publications

References 26 publications

Techniques and applications of skeletal muscle diffusion tensor imaging: A review

Techniques and applications of skeletal muscle diffusion tensor imaging: A review

Magnetic resonance and sonographic imagings of masticatory muscle myalgia in temporomandibular disorder patients

The usefulness of diagnostic imaging for the assessment of pain symptoms in temporomandibular disorders

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Evaluation of diffusion parameters and T2 values of the masseter muscle during jaw opening, clenching, and rest

Abstract: The eigenvalues for diffusion of the MM were sensitive to jaw position. The recruitment of muscle fibers, specific to jaw position, reflects the differences in changes in muscle diffusion parameters.

Cited by 6 publications

References 26 publications

Techniques and applications of skeletal muscle diffusion tensor imaging: A review

Techniques and applications of skeletal muscle diffusion tensor imaging: A review

Magnetic resonance and sonographic imagings of masticatory muscle myalgia in temporomandibular disorder patients

The usefulness of diagnostic imaging for the assessment of pain symptoms in temporomandibular disorders

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Evaluation of diffusion parameters and T₂ values of the masseter muscle during jaw opening, clenching, and rest