Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Outline of Final Research Achievements |
We conducted an acoustic analysis of voluntary expiratory sounds produced before and after deglutition and recorded with videofluorographic images at the videofluorographic swallowing examination (VF) for the establishment of an objective evaluation method and criteria of dysphagia. We performed the VF using simultaneous recording system of VF images with swallowing and respiratory sounds. The voluntary expiratory sounds produced before and after deglutition were analyzed using FFT. We divided analyzed expiratory sounds into 3groups, the Safe group without larynx invasion and aspiration, the Pen group with larynx invasion and the Asp group with aspiration. AD level of these voluntary expiratory sounds produced before and after deglutition were analyzed statistically. As the result of these analyses, AD level of the Safe group significantly showed low value compared with those of the Pen and Asp group in all time windows length
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