Establishment of swallowing function evaluation method by Cine MRI

2020 Fiscal Year Final Research Report

• Project/Area Number: 16K11514
• 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: Tanaka Tatsurou 九州歯科大学, 歯学部, 准教授 (50326469)
• Project Period (FY): 2016-04-01 – 2021-03-31
• Keywords: 摂食・嚥下機能評価 / Cine MRI

Outline of Final Research Achievements

In this study, we attempted to evaluate swallowing function by Cine MRI using T2WI in patients with malignant tumors in the oral region. As a result, we were able to confirmed the flow of saline into the esophagus by Cine MRI of all patients. Various parameters of Cine MRI showed a significant correlation with the score of dysphagia by interviewing patients. We also showed that the mobility of the patient's soft tissues significantly deteriorated after surgery. In particular, it was confirmed that this tendency is remarkable in postoperative patients with a large degree of surgical invasiveness.

Free Research Field

歯科放射線学

Academic Significance and Societal Importance of the Research Achievements

本研究ではT2強調像をベースにしたCine MRIにより、口腔癌患者の嚥下機能を評価することが可能であることを明らかにした。実際に全ての患者において誤嚥の有無を評価することが可能であった。更に、MR像であるため嚥下に関連する軟組織の可動性についても、個別に評価ができることも明らかにした。