Dynamic MR imaging of the temporomandibular joint in patients with arthrosis: relationship between contrast enhancement of the posterior disk attachment and joint pain.

Suenaga, Shigeaki; Hamamoto, Sadatoshi; Kawano, Kenji; Higashida, Yoshiharu; Noikura, Takenori

doi:10.2214/ajr.166.6.8633468

Cited by 57 publications

(31 citation statements)

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“…The vascular content of retrodiscal tissue has been a major focus of interest to dental radiologists, but always in relation to TMJ pain or dislocation [2,6,7,13,22,24,25]. Lee and Yoon [14] demonstrated that the relative signal intensity of retrodiscal tissue in MRI was significantly correlated with joint pathology, including osteoarthritis, effusion, dislocation and pain.…”

Section: Discussionmentioning

confidence: 99%

Individual variations in the vascular content of retrodiscal tissue in the temporomandibular joint: a study using histological sections of human foetuses and magnetic resonance images of adults without pathology

et al. 2014

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Section: Discussionmentioning

confidence: 99%

Individual variations in the vascular content of retrodiscal tissue in the temporomandibular joint: a study using histological sections of human foetuses and magnetic resonance images of adults without pathology

et al. 2014

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“…The causes oftemporomandibuiarjoint pain are varied and can include compression of the highly vascular and innervated posterior disk ent-echo MR imaging and joint pain is well described [6]. Relief from temporomandibu lar joint pain after treatment has been shown to be frequently associatedwith a decreasein contrast enhancement of the posterior disk attachment [i8].…”

Section: Discussionmentioning

confidence: 99%

“…In the joint pain group. a rapid increasein signal intensity during the first 2 mm precededa plateau pat tern on dynamic spoiled gradient-echoimages [6]. It wasbestto obtainimagesusingtheTl weighted spin-echo technique because that showeda more rapid increasein signal inten sity than the spoiled gradient-echo imaging did.…”

Section: Discussionmentioning

confidence: 99%

“…effective in characterizing internal derangement and arthrosis of the temporomandibular joint [1â€"51.Prominent contrast enhancement of the posteriordiskat tachmenton spoiled gradient-echoMR images is useful for differentiating intraarticular from extraarticular causes of pain in and around the temporomandibularjoint [6].…”

Section: R Imagingis Becomingevermorementioning

confidence: 99%

“…Based on an earlier study by Suenaga et al [6], we made qualitative evaluations as to whether con trast enhancement in or around the posterior disk at tachment was slight, moderate. or prominent and whetherenhancement was homogeneous or inho mogeneous.…”

Section: Qualitativeanatysismentioning

confidence: 99%

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Gadolinium-enhanced MR imaging of temporomandibular disorders: improved lesion detection of the posterior disk attachment on T1-weighted images obtained with fat suppression.

Suenaga¹,

Abeyama²,

Noikura³

1998

American Journal of Roentgenology

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OBJECTIVE. The purposeof this studywas to assessthe potentialfor improvedlesion detection in the posterior disk attachment and its surrounding tissue in temporomandibular disorderswhengadolinium-enhanced MR imagingperformedwith fat suppression is used. MATERIALSAND METHODS. Forty-five patients underwent MR imaging withconventional Ti-and T2-weighted, gadolinium-enhanced Ti-weighted, and gadolinium-enhanced fat suppressed spin-echo imaging sequences. Qualitative and quantitative assessments of the contrast enhancement of eachtypeof imagingwerealsoperformed.RESULTS. The contrast-enhanced fat-suppressed Ti-weightedimagingsequence had severaladvantages over theotherimagingtechniquesin detectingabnormalitiesof the poste rior disk attachment and in detecting bone marrow lesions in the mandibular condyle. The most significant advantage was better enhancement of lesion conspicuity. The diagnostic ac curacy of contrast-enhanced fat-suppressed imaging was 77% versus70% for conventional contrast-enhanced imaging. The kappa value for interobserver agreement was .95 for contrast enhancedfat-suppressed imagingand.72 for conventional contrast-enhanced imaging. CONCLUSION. Contrast-enhanced fat-suppressed Tl-weightedspin-echo MR imagingis a valuable technique for visualizing the extent and degree of lesions in the posterior disk at tachment and bone marrow lesions in the mandibular condyle. M R imagingis becomingevermoreeffective in characterizing internal derangement and arthrosis of the temporomandibular joint [1â€"51.Prominent contrast enhancement of the posteriordiskat tachmenton spoiled gradient-echoMR images is useful for differentiating intraarticular from extraarticular causes of pain in and around the temporomandibularjoint [6]. roundingfattytissue. To our knowledge,thecombineduseof fat suppression and gadoliniumenhancement in the imaging of the temporomandibular joint has not been reported in the literature. The purpose of our study was to optimize con trast-enhanced fat-suppressed MR imagingof the temporomandibular joint and to deter mine whether this technique improves the contrast enhancement of images obtained in patients with temporomandibular disorders. Materialsand Methods PhantomStudiesSix stationaiy phantom studies were conducted us ing plastic vials appmximately 1 inch (2.54 cm) in di ameterand 5 inches(12.7 cm)in lengththatcontained gadopentetate dimeglumine in plasmain concentra tionsof 0-2.5 mmol/l.Weexamined therelationship betweenthe concentrationof gadopentetatedimeglu minein plasma andthesignal intensitywhenimages were obtained using spoiled gradient-echoand Ti weighted spin-echo sequences.Parameters for the spoiled gradient-echo MR im agingof thephantoms included TRITE= 35/8,flipangle of 600 20-cm field of view, and two excita tions.Imagematrixwas256x 192pixels.Thesec tion thicknesswas 10mm.Ti-weightedspin-echo MRimagingwasperformed usingTRIFE= 300/12,

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Oswestry Disability Index scores correlate with MRI measurements in degenerating intervertebral discs and endplates

Arpinar

Gliedt

King

et al. 2019

European Journal of Pain

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Background: Low back pain (LBP) is a widespread problem and the leading cause of disability worldwide. While the cause of LBP is multifactorial, several studies suggested that inflammatory mediators in damaged subchondral plates of degenerating discs may lead to chemical sensitization and mechanical stimulation, eventually causing pain. The goal of this study was to explore associations between such changes and LBP-related disability using dynamic contrast-enhanced MRI. Methods: Thirty-two patients diagnosed with nonspecific LBP and 24 healthy control subjects were studied with dynamic contrast-enhanced (DCEMRI) MRI and T1r (spin-lattice relaxation in the rotating frame) acquisitions. DCEMRI enhancement in disc endplate regions and average T1ρ measurements in the nucleus pulposus were extracted. The LBP patients were grouped based on their Oswestry Disability Index (ODI) scores and associations between MRI measurements and ODI scores were analyzed. Results: Significant associations were found between ODI scores and DCEMRI enhancement in the cartilaginous endplate regions of the most degenerated discs. ODI scores also correlated with T1ρ measurements in the nucleus pulposus of degenerating discs. Conclusions: DCEMRI enhancement in the cartilaginous endplate regions and lower T1ρ measurements in the nucleus pulposus (NP) were associated with greater disability that is related to low back pain as reported on the ODI. This complements earlier reports suggesting a link between LBP and endplate degeneration. Further studies are needed to validate these findings. Significance: Our findings indicated that dynamic contrast-enhanced MRI signal enhancement in the cartilaginous endplate regions were associated with greater disability related to low back pain. This signal enhancement might be an indication of inflammatory changes in disc endplate regions. Therefore, advanced quantitative imaging techniques like the ones presented in this study might be needed to complement conventional radiological evaluations to identify the subset of patients who could potentially benefit from novel therapies directed towards treating the disc endplate regions. | 347ARPINAR et Al.

show abstract

Dynamic MR imaging of the temporomandibular joint in patients with arthrosis: relationship between contrast enhancement of the posterior disk attachment and joint pain.

Cited by 57 publications

References 8 publications

Individual variations in the vascular content of retrodiscal tissue in the temporomandibular joint: a study using histological sections of human foetuses and magnetic resonance images of adults without pathology

Individual variations in the vascular content of retrodiscal tissue in the temporomandibular joint: a study using histological sections of human foetuses and magnetic resonance images of adults without pathology

Gadolinium-enhanced MR imaging of temporomandibular disorders: improved lesion detection of the posterior disk attachment on T1-weighted images obtained with fat suppression.

Oswestry Disability Index scores correlate with MRI measurements in degenerating intervertebral discs and endplates

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