Clinical application of swallowing in symptomatic old persons using functional imaging such as cine-MRI

2021 Fiscal Year Final Research Report

• Project/Area Number: 17K11680
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Pathobiological dentistry/Dental radiology
• Research Institution: Kyushu Dental College
• Principal Investigator: Morimoto Yasuhiro 九州歯科大学, 歯学部, 教授 (00275447)
• Project Period (FY): 2017-04-01 – 2022-03-31
• Keywords: cine-MRI / 摂食・嚥下 / 口腔がん / Dynamic MR sialography

Outline of Final Research Achievements

Videofluorography (VF) was established as imaging modality for the evaluation of swallowing, but it was relatively invasive due factors such as X-ray exposure and side effects of the contrast medium. We recently showed the utility of our newly developed cine-magnetic-resonance-imaging (cine-MR) for the evaluation of swallowing. The present study was an evaluation of whether our cine-MR might be useful for evaluating swallowing function in patients with oral cancers. As the results, the present study suggests that cine-MR can be used to directly visualize swallowing dynamics, as well as objectively evaluate the swallowing complaints of oral cancer patients.

Free Research Field

歯科放射線学

Academic Significance and Societal Importance of the Research Achievements

有病高齢者に対して摂食・嚥下機能を評価するために非侵襲的でかつ客観的な判断基準を示すcine-MRIの臨床応用に成功した。実際、cine-MRIにおける摂食・嚥下の状態評価は患者の状態を客観的に表した上、軟組織の三次元的運動状態も明らかにすることができた。更に、口腔がん患者に対する評価では再発及び転移性リンパ節の評価に付随して行うことができ、安全で簡便である。