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2023 Fiscal Year Final Research Report

development of automatic diagnostic system of electromyographic discharges by audio information and artificial intelligence

Research Project

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Project/Area Number 20K07877
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionTenri University (2023)
Tenri Health Care University (2021-2022)
Kanazawa Medical University (2020)

Principal Investigator

NODERA HIROYUKI  天理大学, 医療学部, 研究員 (40363147)

Project Period (FY) 2020-04-01 – 2024-03-31
Keywords針筋電図 / 人工知能 / 音特徴量
Outline of Final Research Achievements

Testing potentials of needle electromyography (needle EMG) obtained from patients with neuromuscular diseases were databased. The classified waveforms were divided into 2 second audio files. Method 1) Audio characteristics were obtained from each audio file. Machine learning methods was used to classify the six resting potentials. The accuracy was 90.4%. Method 2)The same database as the method 1 was used. The audio information was transformed into melspectrogram as image files. The images were divided into training and test data. The training data were then trained with convolutional neural networks (CNNs). Image augmentation was useful in that the accuracy was 100%.

Free Research Field

臨床神経生理学

Academic Significance and Societal Importance of the Research Achievements

針筋電図の放電判別は専門医以外には容易ではなく、正確な診断を妨げている。本研究により機械学習やディープラーニングを用いることで高精度に判別が可能であることが分かった。今後は実用化に向けて対象となる波形を増やしていく。また,教師データの不足が精度上昇のボトルネックになることが指摘されており,生成データをトレーニングデータへ流用できるか検討する必要がある。

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Published: 2025-01-30  

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