{"id":3015,"date":"2025-10-13T23:41:33","date_gmt":"2025-10-13T21:41:33","guid":{"rendered":"https:\/\/portale2.unime.it\/ai-healthlab\/?p=3015"},"modified":"2025-10-15T12:29:23","modified_gmt":"2025-10-15T10:29:23","slug":"generation-of-amyloid-pet-from-mri-for-early-diagnosis-of-alzheimers","status":"publish","type":"post","link":"https:\/\/portale2.unime.it\/ai-healthlab\/en\/generation-of-amyloid-pet-from-mri-for-early-diagnosis-of-alzheimers\/","title":{"rendered":"Generation of Amyloid PET from MRI for Early Diagnosis of Alzheimer\u2019s"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3015\" class=\"elementor elementor-3015\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36913dd3 e-flex e-con-boxed e-con e-parent\" data-id=\"36913dd3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-799439cb elementor-widget elementor-widget-text-editor\" data-id=\"799439cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The <b>CoCoLIT project<\/b> represents a breakthrough in early Alzheimer\u2019s diagnosis: it was born from the need to overcome the limitations of PET scans\u2014expensive and not widely accessible\u2014by offering an innovative and cost-effective solution based solely on MRI images. The core idea is that, while MRI does not directly reveal amyloid pathology, it contains <b>structural patterns<\/b> linked to amyloid presence, which can be extracted and made evident using advanced AI techniques.<\/p>\n<p><b>Motivations &amp; Objectives:<\/b><\/p>\n<ul>\n<li>Reduce costs and improve accessibility to Alzheimer\u2019s screening through the synthesis of virtual PET images from MRI;<\/li>\n<li>Enable aggressive early identification of patients at risk, even on a large scale;<\/li>\n<li>Provide new opportunities for clinical studies and translational research.<\/li>\n<\/ul>\n<p><b>Methods:<\/b><\/p>\n<ul>\n<li>Generative latent diffusion model with ControlNet conditioning for MRI-to-PET translation;<\/li>\n<li>Introduction of Weighted Image Space Loss (WISL) to refine the quality of synthetic images;<\/li>\n<li>Innovative analysis of Latent Average Stabilization (LAS) to improve inference consistency;<\/li>\n<li>Validation on large public datasets;<\/li>\n<\/ul>\n<p><b>Impact:<\/b><\/p>\n<ul>\n<li>Increases of up to +23.7% accuracy in amyloid positivity classification compared to the best existing methods;<\/li>\n<li>Open-source release of code and models for the benefit of the scientific community;<\/li>\n<li>Enhancement of reproducible research and clinical adoption of advanced AI techniques.<\/li>\n<\/ul>\n<h3><br><\/h3><h3>Related Scientific Articles<\/h3>\n<ul>\n<li>CoCoLIT: ControlNet-Conditioned Latent Image Translation for MRI to Amyloid PET Synthesis<br><a href=\"https:\/\/arxiv.org\/abs\/2508.01292\">(arXiv preprint arXiv:2508.01292, 2025)<\/a> \u2013<br><a href=\"https:\/\/scholar.google.com\/citations?view_op=view_citation&amp;hl=it&amp;user=qh2Rr-cAAAAJ&amp;cstart=20&amp;pagesize=80&amp;citation_for_view=qh2Rr-cAAAAJ:uWQEDVKXjbEC\">Google Scholar<\/a><\/li>\n<\/ul>\n<h3><br><\/h3><h3>Code Repository<\/h3>\n<ul>\n<li>Official repository: <a href=\"https:\/\/github.com\/brAIn-science\/CoCoLIT\">brAIn-science\/CoCoLIT<\/a>\n<p>Main code: <code>src\/cocolit\/cli\/mri2pet.py<\/code><\/p>\n<p>Explore the <a href=\"https:\/\/github.com\/brAIn-science\/CoCoLIT\/tree\/main\/src\/cocolit\/cli\">CLI folder<\/a>.<\/p>\n<p>Documentation: <a href=\"https:\/\/github.com\/brAIn-science\/CoCoLIT\/tree\/main\/docs\">docs\/<\/a><\/p><\/li>\n<\/ul>\n<h3><br><\/h3><h3>Team &amp; Authors<\/h3>\n<ul>\n<li><a href=\"https:\/\/github.com\/daniravi\">Daniele Rav\u00ec<\/a> (Project lead, senior author)<\/li>\n<li><a href=\"https:\/\/github.com\/LemuelPuglisi\">Lemuel Puglisi<\/a> (Co-first author, development and implementation)<\/li>\n<li><a href=\"https:\/\/github.com\/alecsargood\">Alec Sargood<\/a> (Co-first author)<\/li>\n<li>With the collaboration of James H. Cole, Neil P. Oxtoby, Daniel C. Alexander.<\/li>\n<\/ul>\n<h3><br><\/h3><h3>Results &amp; Application<\/h3>\n<ul>\n<li>Tests on real Alzheimer&#8217;s datasets: CoCoLIT outperforms all previous methods in both <b>image synthesis<\/b> and <b>amyloid classification<\/b>.<\/li>\n<li>SIGNIFICANT: +10.5% balanced accuracy on internal dataset, +23.7% on external dataset.<\/li>\n<li>Code available to the community to ensure full transparency and reproducibility.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8197504 e-flex e-con-boxed e-con e-parent\" data-id=\"8197504\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9d01e59 elementor-widget elementor-widget-image\" data-id=\"9d01e59\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"880\" height=\"400\" src=\"https:\/\/portale2.unime.it\/ai-healthlab\/wp-content\/uploads\/sites\/94\/2025\/10\/preview.gif\" class=\"attachment-large size-large wp-image-2401\" alt=\"\" style=\"width:100%;height:45.45%;max-width:880px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The CoCoLIT project represents a breakthrough in early Alzheimer\u2019s diagnosis: it was born from the need to overcome the limitations of PET scans\u2014expensive and not widely accessible\u2014by offering an innovative and cost-effective solution based solely on MRI images. The core idea is that, while MRI does not directly reveal amyloid pathology, it contains structural patterns&hellip; <a class=\"more-link\" href=\"https:\/\/portale2.unime.it\/ai-healthlab\/en\/generation-of-amyloid-pet-from-mri-for-early-diagnosis-of-alzheimers\/\">Continua a leggere <span class=\"screen-reader-text\">Generation of Amyloid PET from MRI for Early Diagnosis of Alzheimer\u2019s<\/span><\/a><\/p>\n","protected":false},"author":94,"featured_media":2399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[9,11],"class_list":["post-3015","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-eng-en","tag-formazione-en","tag-ricerca-en","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Generation of Amyloid PET from MRI for Early Diagnosis of Alzheimer\u2019s - AI-HealthLab<\/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:\/\/portale2.unime.it\/ai-healthlab\/en\/generation-of-amyloid-pet-from-mri-for-early-diagnosis-of-alzheimers\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Generation of Amyloid PET from MRI for Early Diagnosis of Alzheimer\u2019s - AI-HealthLab\" \/>\n<meta property=\"og:description\" content=\"The CoCoLIT project represents a breakthrough in early Alzheimer\u2019s diagnosis: it was born from the need to overcome the limitations of PET scans\u2014expensive and not widely accessible\u2014by offering an innovative and cost-effective solution based solely on MRI images. 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