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Evaluation of effect of hyperthermia and Hiyaan therapy on the masticatory muscle using MRI.

Research Project

Project/Area Number 24791348
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Radiation science
Research InstitutionFukuoka Dental College

Principal Investigator

CHIKUI Tomoko (SHIRAISHI Tomoko)  福岡歯科大学, 歯学部, 医員 (80580472)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords咬筋 / 拡散係数 / IVIM / 温熱刺激 / ADC / 咬みしめ / 噛みしめ
Research Abstract

Diffusion-weighted MRI observed the masseter muscles after gum chewing every four minutes. We compared the sequential changes with thermal stimulus after the gum chewing to those without thermal stimulus. The container included the hot water (41 degrees Celsius) was made contact to the check of the volunteers as the thermal stimulus.
Without thermal stimulus, ADC (b<200) increased after the gum chewing and kept high over 12 minutes. On the other hand, with thermal stimulus, the changes were smaller than those without the thermal stimulus. When the b factor is smaller, ADC is predominantly affected by the tissue perfusion (blood flow). Therefore, we considered that the thermal stimulus caused the vasodilation of the surrounding tissues and could diminish the both hyperemia and the edema within the masseter muscle.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (1 results)

All 2012

All Presentation (1 results)

  • [Presentation] 開閉口位における拡散テンソル画像の検討.2012

    • Author(s)
      白石朋子、筑井 徹、稲冨大介、堀尾千佳、橋本麻利江、香川豊宏、三輪邦弘、湯浅賢治.
    • Organizer
      第32回日本歯科放射線学会関西・九州合同地方会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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