The intravoxel incoherent motion MRI of lateral pterygoid muscle: a quantitative analysis in patients with temporomandibular joint disorders
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- Supak Ngamsom
- Oral and Maxillofacial Radiology Department, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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- Shin Nakamura
- Oral and Maxillofacial Radiology Department, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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- Junichiro Sakamoto
- Oral and Maxillofacial Radiology Department, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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- Shinya Kotaki
- Oral and Maxillofacial Radiology Department, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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- Akemi Tetsumura
- Oral and Maxillofacial Radiology Department, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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- Tohru Kurabayashi
- Oral and Maxillofacial Radiology Department, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
書誌事項
- 公開日
- 2017-07
- 資源種別
- journal article
- DOI
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- 10.1259/dmfr.20160424
- 公開者
- Oxford University Press (OUP)
この論文をさがす
説明
To quantitatively evaluate diffusion and perfusion status of lateral pterygoid muscle (LPM) in patients with temporomandibular joint disorder (TMD) by intravoxel incoherent motion (IVIM) imaging and to correlate with findings on temporomandibular joints (TMJs) by conventional MRI.42 patients with TMD underwent MRI. To assess IVIM parameters, diffusion-weighted imaging was obtained by spin-echo-based single-shot echoplanar imaging. Regions of interest were created on all diffusion-weighted images of the superior belly of the lateral pterygoid (SLP) and inferior belly of the lateral pterygoid (ILP) at b-values 0-500 s mmFor SLP, the f parameter in TMJs with anterior disc displacement without reduction was significantly higher than that in normal ones (p = 0.015). It was also significantly higher in TMJs with joint effusion than in those without (p = 0.016). On the other hand, for both SLP and ILP, the D parameter significantly increased in TMJs with osteoarthritis compared with those without (p = 0.015 and p = 0.022, respectively).Pathological changes of LPM in patients with TMD may be quantitatively evaluated by IVIM parameters.
収録刊行物
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- Dentomaxillofacial Radiology
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Dentomaxillofacial Radiology 46 (5), 20160424-, 2017-07
Oxford University Press (OUP)
