2020 Fiscal Year Final Research Report
Development of skin disease classifier using artificial intelligence
| Project/Area Number |
18K08290
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 53050:Dermatology-related
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Keywords | 皮膚腫瘍 / 人工知能 / 分類 |
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| Outline of Final Research Achievements |
We trained AI using 4,800 out of 6,000 tumor images including benign and malignant which were retrospectively collected at University of Tsukuba, Dermatology division. The rest 1,200 images were used for the testing AI to calculate the accuracy of AI. Next, we randomly chose 140 images for the test dataset and compared the efficacy with board-certified dermatologists. As a result, AI classified images 93.4% accuracy whereas the board certified dermatologists achieved 85.3%, which was statistically significant different. Our study showed that the AI could classify tumor images more accurately than board-certified dermatologists.
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| Free Research Field |
皮膚科
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| Academic Significance and Societal Importance of the Research Achievements |
本研究にて従来必要であるとされた1分類あたり1000枚という教師画像の数が，実際にはより少ない数（本研究では14クラスの分類で4800枚の教師画像）でも充分な精度で疾患の写真を分類できることを明らかにした．これは稀少な腫瘍が多い皮膚腫瘍の分野では多くの教師画像が集められないため，今後のAI皮膚腫瘍分類システムの構築にあたり大きなアドバンテージとなる．また，今回研究に使用した皮膚腫瘍だけでなくその他の分野にも応用が可能な技術であり，皮膚科に留まらずその他の分野においてもその開発の役に立つと思われる．現在はこのシステムを医療機器として使えるように研究開発を進めている．
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