Parameters for diffusion weighted magnetic resonance imaging for temporomandibular joint

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概要

• 論文の詳細を見る

• The purpose of this study was to determine optimum diffusion parameters for diffusion weighted imaging (DWI) techniques, including echo planer imaging (EPI), single-shot fast spin echo (SSFSE), and steady-state free precession (SSFP) in Magnetic Resonance Imaging (MRI) of the Temporomandibular Joint (TMJ). A polyethylene tube with distilled water was individually positioned at the external acoustic meatus foramen in each of three volunteers with normal healthy TMJs. Images were obtained using three types of DWI at differing diffusion parameters, b-factors, and diffusion moment. Signal intensity and imaging ability for various anatomical structures, including the distilled water, were evaluated from each image. The details of the anatomical structures of the TMJ were unidentifiable in the images produced with EPI and SSFSE, but were identifiable on the SSFP images. A diffusion moment value from 100mT/m^*msec to 150mT/m^*msec for SSFP, in particular, restrained the signal intensity of the water, thereby protecting the comparably high image quality of the TMJ structure. In conclusion, only SSFP is capable of allowing interpretation of emerging pathologic conditions in the TMJ region, when used with a diffusion moment set at between from approximately 100mT/m^*msec to 150mT/m^*msec.

• 東京歯科大学の論文

著者

• Yamamoto Mika

  Department Of Cardiovascular Medicine Okayama University Graduate School Of Medicine And Dentistry

• Yamamoto Mika

  Department Of Oral And Maxillofacial Radiology Tokyo Dental College

• Harada Takuya

  Department Of Oral And Maxillofacial Radiology Tokyo Dental College

• Wakoh Mamoru

  Department Of Oral And Maxillofacial Radiology Tokyo Dental College

• Yamamoto M

  Department Of Advanced Materials Science & Engineering Faculty Of Engineering Yamaguchi Universi

• Sano Tsukasa

  Department Of Oral And Maxillofacial Radiology Tokyo Dental College

• Sano T

  Department Of Applied Biological Chemistry Faculty Of Agriculture Tohoku University

• Otonari Takamichi

  Department of Oral and Maxillofacial Radiology, Tokyo Dental College

• Ohkubo Mai

  Department of Oral and Maxillofacial Radiology, Tokyo Dental College

• Ohkubo Mai

  Department Of Oral And Maxillofacial Radiology Tokyo Dental College

• Otonari Takamichi

  Department Of Oral And Maxillofacial Radiology Tokyo Dental College

• Harada T

  Department Of Applied Chemistry And Chemical Engineering Yamaguchi University

• Wakoh M

  Department of Oral and Maxillofacial Radiology, Tokyo Dental College

• WAKOH Mamoru

  Department of Oral and Maxillofacial Radiology, Tokyo Dental College

• Otonari T

  Department of Oral and Maxillofacial Radiology, Tokyo Dental College

• Ohkubo M

  Department of Oral and Maxillofacial Radiology, Tokyo Dental College

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