{"id":3689,"date":"2025-09-18T15:03:50","date_gmt":"2025-09-18T18:03:50","guid":{"rendered":"https:\/\/overticeportal.com.br\/?p=3689"},"modified":"2025-09-18T15:03:53","modified_gmt":"2025-09-18T18:03:53","slug":"novo-modelo-de-ia-pode-estimar-risco-de-cancer-de-pulmao","status":"publish","type":"post","link":"https:\/\/portalam9.com.br\/?p=3689","title":{"rendered":"Novo modelo de IA pode estimar risco de c\u00e2ncer de pulm\u00e3o"},"content":{"rendered":"\n

Tempo de leitura:<\/em> 7 minutos <\/em><\/p>\n\n\n\n

O\u00a0c\u00e2ncer de pulm\u00e3o\u00a0\u00e9 a principal causa de mortes por c\u00e2ncer no mundo. Aqui no Brasil, foram registrados cerca de 30 mil \u00f3bitos pela doen\u00e7a em 2022, confirmando uma tend\u00eancia de alta nos casos nas \u00faltimas d\u00e9cadas.<\/p>\n\n\n\n

O cen\u00e1rio preocupa as autoridades de sa\u00fade. Mas o uso da\u00a0intelig\u00eancia artificial\u00a0pode ajudar a acelerar o processo de identifica\u00e7\u00e3o dos tumores nos n\u00f3dulos pulmonares, aumentando as chances de sobreviv\u00eancia dos pacientes.<\/p>\n\n\n\n

\"\"
Tecnologia pode ajudar a identificar tumores nos pulm\u00f5es (Imagem: utah778\/iStock)<\/figcaption><\/figure>\n\n\n\n

Redu\u00e7\u00e3o dos resultados falso-positivos<\/strong><\/h2>\n\n\n\n
    \n
  • Em um novo estudo publicado na revista\u00a0Radiology, pesquisadores apresentaram uma nova IA capaz de estimar o risco de desenvolvimento de tumores nos n\u00f3dulos pulmonares.<\/li>\n\n\n\n
  • Al\u00e9m das altas taxas de detec\u00e7\u00e3o de c\u00e2ncer, a ferramenta \u00e9 capaz de reduzir significativamente os resultados falso-positivos.<\/li>\n\n\n\n
  • O surgimento de n\u00f3dulos pulmonares \u00e9 algo comum, mas identificar quais s\u00e3o malignos ainda \u00e9 um grande desafio para a medicina.<\/li>\n\n\n\n
  • Neste sentido, a intelig\u00eancia artificial pode ser uma importante aliada na detec\u00e7\u00e3o precoce de tumores.<\/li>\n<\/ul>\n\n\n\n
    \"ilustra\u00e7\u00e3o
    Ferramenta \u00e9 capaz de identificar tumores malignos (Imagem: Ebrahim Lotfi\/Shutterstock)<\/figcaption><\/figure>\n\n\n\n

    Algoritmo da IA foi treinado especificamente para a fun\u00e7\u00e3o<\/strong><\/h2>\n\n\n\n

    A maioria dos protocolos atuais de rastreamento de c\u00e2ncer de pulm\u00e3o depende do tamanho, tipo e crescimento do n\u00f3dulo para estimar se ele \u00e9 ou n\u00e3o maligno. J\u00e1 o modelo de IA pode identificar esse risco por meio de uma combina\u00e7\u00e3o de caracter\u00edsticas.<\/p>\n\n\n\n

    Os pesquisadores treinaram o algoritmo a partir de dados do National Lung Screening Trial, um grande estudo cl\u00ednico realizado nos Estados Unidos que comparou a tomografia computadorizada (TC) de baixa dose com a radiografia de t\u00f3rax para o rastreamento de c\u00e2ncer de pulm\u00e3o em fumadores de alto risco.<\/p>\n\n\n\n

    \"inteligencia
    IA demonstrou efic\u00e1cia na hora de identificar os sinais da doen\u00e7a (Imagem: Anggalih Prasetya\/Shutterstock)<\/figcaption><\/figure>\n\n\n\n

    No total, a IA recebeu informa\u00e7\u00f5es de 16.077 n\u00f3dulos, sendo 1.249 malignos. Ap\u00f3s, foi verificado o desempenho da ferramenta para identificar os riscos do c\u00e2ncer de pulm\u00e3o em 4.146 participantes que aposentavam os n\u00f3dulos.<\/p>\n\n\n\n

    A tecnologia conseguiu superar os atuais modelos utilizados para a detec\u00e7\u00e3o de n\u00f3dulos indeterminados, com mais de 90% de precis\u00e3o, e apresentar resultados semelhantes para n\u00f3dulos malignos. J\u00e1 em rela\u00e7\u00e3o aos benignos, a taxa de acerto foi de 68%, contra 47% sem uso da IA, representando uma redu\u00e7\u00e3o importante nos falsos positivos.<\/p>\n\n\n\n

    Fonte: Olhar Digital \/<\/strong> Foto: Sebastian Kaulitzki\/Shutterstock<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

    Tempo de leitura: 7 minutos O\u00a0c\u00e2ncer de pulm\u00e3o\u00a0\u00e9 a principal causa de mortes por c\u00e2ncer<\/p>\n","protected":false},"author":3,"featured_media":3690,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-3689","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health"],"yoast_head":"\nNovo modelo de IA pode estimar risco de c\u00e2ncer de pulm\u00e3o - Portal Amazonas 9<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/portalam9.com.br\/?p=3689\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Novo modelo de IA pode estimar risco de c\u00e2ncer de pulm\u00e3o - Portal Amazonas 9\" \/>\n<meta property=\"og:description\" content=\"Tempo de leitura: 7 minutos O\u00a0c\u00e2ncer de pulm\u00e3o\u00a0\u00e9 a principal causa de mortes por c\u00e2ncer\" \/>\n<meta property=\"og:url\" content=\"https:\/\/portalam9.com.br\/?p=3689\" \/>\n<meta property=\"og:site_name\" content=\"Portal Amazonas 9\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-18T18:03:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-18T18:03:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/portalam9.com.br\/wp-content\/uploads\/2025\/09\/cancer-de-pulmao-1920x1080-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Reda\u00e7\u00e3o Portal AM9\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Reda\u00e7\u00e3o Portal AM9\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/?p=3689#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/?p=3689\"},\"author\":{\"name\":\"Reda\u00e7\u00e3o Portal AM9\",\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/#\\\/schema\\\/person\\\/98ef830cc0fc3a08e33cb435efda505a\"},\"headline\":\"Novo modelo de IA pode estimar risco de c\u00e2ncer de pulm\u00e3o\",\"datePublished\":\"2025-09-18T18:03:50+00:00\",\"dateModified\":\"2025-09-18T18:03:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/?p=3689\"},\"wordCount\":434,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/#\\\/schema\\\/person\\\/98ef830cc0fc3a08e33cb435efda505a\"},\"image\":{\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/?p=3689#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/portalam9.com.br\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/cancer-de-pulmao-1920x1080-1.jpg\",\"articleSection\":[\"Health\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/portalam9.com.br\\\/?p=3689#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/portalam9.com.br\\\/?p=3689\",\"url\":\"https:\\\/\\\/portalam9.com.br\\\/?p=3689\",\"name\":\"Novo modelo de IA pode estimar risco de c\u00e2ncer de pulm\u00e3o - 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