{"id":2599,"date":"2023-07-17T19:35:31","date_gmt":"2023-07-17T19:35:31","guid":{"rendered":"https:\/\/dailyai.com\/?p=2599"},"modified":"2023-07-17T22:06:29","modified_gmt":"2023-07-17T22:06:29","slug":"google-develops-ai-system-to-enhance-the-accuracy-of-ai-medical-diagnostics","status":"publish","type":"post","link":"https:\/\/dailyai.com\/pt\/2023\/07\/google-develops-ai-system-to-enhance-the-accuracy-of-ai-medical-diagnostics\/","title":{"rendered":"Google desenvolve sistema para melhorar a precis\u00e3o dos diagn\u00f3sticos m\u00e9dicos por IA"},"content":{"rendered":"<p><b>A IA est\u00e1 a revelar-se excecionalmente \u00fatil para diagnosticar doen\u00e7as a partir de imagens m\u00e9dicas, como os raios X, em grande escala. No entanto, as ferramentas de IA nem sempre s\u00e3o capazes de reconhecer as suas pr\u00f3prias imprecis\u00f5es.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Em resposta, a Google desenvolveu um novo sistema de IA denominado \"Complementarity-driven Deferral-to-Clinical Workflow\" (CoDoC), que consegue discernir quando confiar em diagn\u00f3sticos baseados em IA e solicitar uma segunda opini\u00e3o de um m\u00e9dico humano.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">De acordo com <\/span><a href=\"https:\/\/www.nature.com\/articles\/s41591-023-02437-x\"><span style=\"font-weight: 400;\">o estudo<\/span><\/a><span style=\"font-weight: 400;\">O CoDoC reduz a carga de trabalho da an\u00e1lise de dados de exames m\u00e9dicos em 66%, mas tamb\u00e9m detecta quando uma decis\u00e3o de IA est\u00e1 potencialmente errada, o que reduz os falsos positivos em 25%.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">O CoDoC funciona em paralelo com os sistemas de IA existentes, normalmente utilizados para interpretar imagens m\u00e9dicas, como radiografias do t\u00f3rax ou mamografias.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por exemplo, se uma ferramenta de IA estiver a interpretar uma mamografia, o CoDoC avalia se a confian\u00e7a sentida pela ferramenta na sua an\u00e1lise \u00e9 suficientemente forte para ser aceite. Se houver alguma ambiguidade, o CoDoC solicita uma segunda opini\u00e3o a um perito humano.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Eis como funciona:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Para treinar o CoDoC, a Google utilizou dados de ferramentas de IA cl\u00ednica existentes e comparou-os com a interpreta\u00e7\u00e3o das mesmas imagens por um m\u00e9dico humano. O modelo foi ainda validado com a p\u00f3s-an\u00e1lise de dados atrav\u00e9s de bi\u00f3psia ou outros m\u00e9todos.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Este processo permite ao CoDoC aprender e compreender a exatid\u00e3o da an\u00e1lise e dos n\u00edveis de confian\u00e7a de uma ferramenta de IA em compara\u00e7\u00e3o com os m\u00e9dicos humanos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Uma vez treinado, o CoDoC pode determinar se uma an\u00e1lise de digitaliza\u00e7\u00e3o efectuada pela IA \u00e9 fi\u00e1vel ou se \u00e9 necess\u00e1ria uma revis\u00e3o humana.\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Alan Karthikesalingam da Google Health UK, que participou na investiga\u00e7\u00e3o, <a href=\"https:\/\/www.newscientist.com\/article\/2382756-google-ai-helps-doctors-decide-whether-to-trust-diagnoses-made-by-ai\/\">disse<\/a>\"Se utilizarmos o CoDoC juntamente com a ferramenta de IA e os resultados de um radiologista real, e se o CoDoC ajudar a decidir qual a opini\u00e3o a utilizar, a precis\u00e3o resultante \u00e9 melhor do que a de uma pessoa ou da ferramenta de IA isoladamente.\"<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Foram efectuados mais testes do CoDoC utilizando diferentes conjuntos de dados de mamografias e radiografias para o rastreio da tuberculose em v\u00e1rios sistemas de IA preditiva, obtendo-se resultados positivos.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Krishnamurthy Dvijotham, da Google DeepMind, observou: \"A vantagem do CoDoC \u00e9 que \u00e9 interoper\u00e1vel com uma variedade de sistemas de IA propriet\u00e1rios\".<\/span><\/p>\n<p><span style=\"font-weight: 400;\">No entanto, Helen Salisbury, da Universidade de Oxford, salienta que alguns processos de diagn\u00f3stico m\u00e9dico s\u00e3o mais complexos do que aqueles com que o CoDoC foi testado. Helen Salbury, da Universidade de Oxford, refere que alguns processos de diagn\u00f3stico m\u00e9dico s\u00e3o mais complexos do que aqueles com os quais a CoDoC foi testada. \"Para sistemas em que n\u00e3o temos qualquer hip\u00f3tese de influenciar, post-hoc, o que sai da caixa negra, parece ser uma boa ideia acrescentar a aprendizagem autom\u00e1tica. N\u00e3o sei se isso aproxima mais a IA que vai estar connosco todos os dias, no nosso trabalho de rotina\".<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Como salientam os investigadores, a interoperabilidade da CoDoC significa que pode ser integrada em diferentes fluxos de trabalho de diagn\u00f3stico. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">A<\/span><span style=\"font-weight: 400;\">Os sistemas I podem trabalhar com sistemas de IA para melhorar a sua exatid\u00e3o. Como diz o ditado, quatro olhos v\u00eaem mais do que dois. <\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>A IA est\u00e1 a revelar-se excecionalmente \u00fatil para diagnosticar doen\u00e7as a partir de imagens m\u00e9dicas, como os raios X, em grande escala. No entanto, as ferramentas de IA nem sempre s\u00e3o capazes de reconhecer as suas pr\u00f3prias imprecis\u00f5es.  Em resposta, a Google desenvolveu um novo sistema de IA chamado CoDoC (Complementarity-driven Deferral-to-Clinical Workflow), que consegue discernir quando confiar em diagn\u00f3sticos baseados em IA e solicitar uma segunda opini\u00e3o de um m\u00e9dico humano.  De acordo com o estudo, o CoDoC reduz a carga de trabalho da an\u00e1lise de dados de exames m\u00e9dicos em 66%, mas tamb\u00e9m detecta quando uma decis\u00e3o de IA est\u00e1 potencialmente errada, o que reduz os falsos positivos em 25%.  O CoDoC funciona em paralelo com os sistemas de IA existentes, normalmente<\/p>","protected":false},"author":2,"featured_media":2600,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[203,147,102,101],"class_list":["post-2599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-biotech","tag-deepmind","tag-google","tag-medtech"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Google develops system to enhance the accuracy of AI medical diagnostics | DailyAI<\/title>\n<meta name=\"description\" content=\"AI is proving exceptionally useful for diagnosing diseases from medical images, such as X-rays, at scale. However, AI tools aren\u2019t always able to recognize when they could be inaccurate.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/pt\/2023\/07\/google-develops-ai-system-to-enhance-the-accuracy-of-ai-medical-diagnostics\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Google develops system to enhance the accuracy of AI medical diagnostics | DailyAI\" \/>\n<meta property=\"og:description\" content=\"AI is proving exceptionally useful for diagnosing diseases from medical images, such as X-rays, at scale. 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