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Back印度新創結合嗅聞犬與AI技術,開發非侵入性癌症初篩
印度新創結合嗅聞犬與AI技術,開發非侵入性癌症初篩
Tech
中央社2 hours agoTech3 min readChinaView translation

印度新創結合嗅聞犬與AI技術,開發非侵入性癌症初篩

印度班加羅爾新創公司Dognosis利用AI分析嗅聞犬生理反應,針對7種常見癌症篩檢準確率逾9成,盼提供平價初篩方案。

Quick Look

印度班加羅爾新創公司Dognosis結合嗅聞犬靈敏嗅覺與AI技術,開發非侵入性癌症初篩。透過分析犬隻對患者口罩樣本的生理反應,在7種癌症篩檢中準確率逾9成,目標明年商業化以提升早期診斷率。

AI-generated summary

Why It Matters

研究顯示疾病會改變人體氣味,而犬隻擁有極高嗅覺受器數量,具備偵測疾病潛力。

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(中央社班加羅爾7日綜合外電報導)狗狗真能聞出癌症?印度團隊結合狗狗靈敏嗅覺與AI技術,開發出非侵入性癌症初篩技術。小規模研究顯示,這項技術在7種常見癌症篩檢中準確率突破9成,盼助患者及早確診。

法新社報導,全球愈來愈多研究顯示,狗狗經過訓練後,能偵測癌症、帕金森氏症、COVID-19等多種人類疾病。研究顯示,疾病可能改變人體釋放的化學物質,進而產生獨特氣味,而相較於人類僅有約500萬個嗅覺受器,狗狗則擁有多達3億個,嗅覺更為靈敏。

印度班加羅爾(Bengaluru)新創公司Dognosis正利用人工智慧(AI)分析狗狗腦部活動、呼吸與肢體語言,將牠們對氣味的生理反應,轉化為可分析的數據。

26歲的共同創辦人庫戈德(Akash Kulgod)出身醫生世家,畢業於加州大學柏克萊分校(University of California, Berkeley)認知科學系,他告訴法新社:「在1小時當中,牠們能嗅聞數千次,每一次都能評估一份樣本。」

若能趁早期發現罹癌,將大大影響患者存活率,但在印度,許多癌症患者確診時往往已是晚期。犬隻嗅聞篩檢將能提供一種簡易、平價、可大規模推廣的初篩方式,先找出潛在病例,再做進一步檢查。

Dognosis期待明年正式投入商業化營運,有望成為繼德國與以色列業者之後,全球第3家從事這類技術的公司。在爭取商業許可的同時,Dognosis也獲印度創投公司Accel等企業注資,並且正與政府醫療機構展開合作。

目前Dognosis共訓練15隻嗅聞犬,其中多數是米格魯,也有部分是馬利諾犬與牧羊犬的混血犬,均透過領養或合法繁殖業者引進。

牠們身上會穿戴特製3D列印頭盔以及布滿感測器的背帶,在裝有自動餵食機的工作平台上嗅聞人類樣本,完成任務即可獲得零食獎勵,每天工作時間控制在30至45分鐘左右。

檢測方式十分簡便,患者只要對著棉質口罩呼吸約10分鐘,接著將口罩裝在密封袋中,送往實驗室。受檢患者不會直接與狗狗接觸。

Dognosis近期針對卡納塔卡邦(Karnataka)6家醫院、超過1500名受試者進行的研究,發現這項技術在7種主要癌症檢測中,準確率高達90%以上,目前正計劃在實際場域中展開測試,研究成果已發表於「臨床腫瘤學雜誌」(Journal of Clinical Oncology)。

未參與這項計畫的班加羅爾癌症專科醫師則表示,對這項技術抱持樂觀態度。

拉邁亞紀念醫院(Ramaiah Memorial Hospital)腫瘤科主任戴瓦達斯(Santhosh Kumar Devadas)說,這項研究初步看來相當具有潛力,「但須以規模更大的群體進行研究,才能做出明確結論」。

What to Watch

AI outlook — possibilities, not facts

  • Dognosis預計於明年正式投入商業化營運。

    Likely · Within months

Open Questions

  • 大規模臨床試驗是否能維持高準確率?
  • 商業化後的具體收費標準為何?

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This article was originally published by 中央社.

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