Changes for page Methodology
Last modified by manuelmenendez on 2025/03/14 08:31
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... ... @@ -1,148 +1,189 @@ 1 - Hereis the updated**Methodology** section for the EBRAINS Wiki, incorporating the **Generalized Neuro BiomarkerOntology Categorization (Neuromarker)** for **biomarker classification across all neurodegenerative diseases**.1 +==== **Overview** ==== 2 2 3 --- --3 +This project develops a **tridimensional diagnostic framework** for **CNS diseases**, incorporating **AI-powered annotation tools** to improve **interpretability, standardization, and clinical utility**. The methodology integrates **multi-modal data**, including **genetic, neuroimaging, neurophysiological, and biomarker datasets**, and applies **machine learning models** to generate **structured, explainable diagnostic outputs**. 4 4 5 -== ** Neurodiagnoses AI: Multimodal AI for Neurodiagnostic Predictions** ==5 +=== **Workflow** === 6 6 7 -=== **Project Overview** === 7 +1. ((( 8 +**We Use [[https:~~/~~/github.com/users/manuelmenendezgonzalez/projects/1>>https://GitHub for AI Development]]** 8 8 9 -Neurodiagnoses AI implements **AI-driven diagnostic and prognostic models** for central nervous system (CNS) disorders, expanding the **Florey Dementia Index (FDI) methodology** to a broader set of neurological conditions. The approach integrates **multimodal data sources** (EEG, neuroimaging, biomarkers, and genetics) and employs machine learning models to provide **explainable, real-time diagnostic insights**. This framework now incorporates **Neuromarker**, a **generalized biomarker ontology** that categorizes biomarkers across neurodegenerative diseases, enabling **standardized, cross-disease AI training**. 10 +* Create a **GitHub repository** for AI scripts and models. 11 +* Use **GitHub Projects** to manage research milestones. 12 +))) 13 +1. ((( 14 +**We Use EBRAINS for Data & Collaboration** 10 10 11 -== **Neuromarker: Generalized Biomarker Ontology** == 16 +* Store **biomarker and neuroimaging data** in **EBRAINS Buckets**. 17 +* Run **Jupyter Notebooks** in **EBRAINS Lab** to test AI models. 18 +* Use **EBRAINS Wiki** for structured documentation and research discussion. 19 +))) 12 12 13 - Neuromarker extends the **Common Alzheimer’s Disease Research Ontology (CADRO)** into a **cross-disease biomarker categorization framework** applicable to all neurodegenerative diseases (NDDs). It allows for **standardized classification, AI-based feature extraction, and multimodal integration**.21 +---- 14 14 15 -=== ** CoreBiomarker Categories** ===23 +=== **1. Data Integration** === 16 16 17 - Thefollowing ontology is used within**NeurodiagnosesAI**for biomarker categorization:25 +==== **Data Sources** ==== 18 18 19 -|=**Category**|=**Description** 20 -|**Molecular Biomarkers**|Omics-based markers (genomic, transcriptomic, proteomic, metabolomic, lipidomic) 21 -|**Neuroimaging Biomarkers**|Structural (MRI, CT), Functional (fMRI, PET), Molecular Imaging (tau, amyloid, α-synuclein) 22 -|**Fluid Biomarkers**|CSF, plasma, blood-based markers for tau, amyloid, α-synuclein, TDP-43, GFAP, NfL 23 -|**Neurophysiological Biomarkers**|EEG, MEG, evoked potentials (ERP), sleep-related markers 24 -|**Digital Biomarkers**|Gait analysis, cognitive/speech biomarkers, wearables data, EHR-based markers 25 -|**Clinical Phenotypic Markers**|Standardized clinical scores (MMSE, MoCA, CDR, UPDRS, ALSFRS, UHDRS) 26 -|**Genetic Biomarkers**|Risk alleles (APOE, LRRK2, MAPT, C9orf72, PRNP) and polygenic risk scores 27 -|**Environmental & Lifestyle Factors**|Toxins, infections, diet, microbiome, comorbidities 27 +**Biomedical Ontologies & Databases:** 28 28 29 ----- 29 +* **Human Phenotype Ontology (HPO)** for symptom annotation. 30 +* **Gene Ontology (GO)** for molecular and cellular processes. 30 30 31 - ==**HowtoUseExternal Databasesin Neurodiagnoses**==32 +**Dimensionality Reduction and Interpretability:** 32 32 33 -To enhance diagnostic accuracy, Neurodiagnoses AI integrates data from **multiple biomedical and neurological research databases**. Researchers can follow these steps to access, prepare, and integrate data into the Neurodiagnoses framework. 34 +* **Evaluate interpretability** using metrics like the **Area Under the Interpretability Curve (AUIC)**. 35 +* **Leverage DEIBO (Data-driven Embedding Interpretation Based on Ontologies)** to connect model dimensions to ontology concepts. 34 34 35 - ===**PotentialDataSources**===37 +**Neuroimaging & EEG/MEG Data:** 36 36 37 -Neurodiagnoses maintains an **updated list** of biomedical datasets relevant to neurodegenerative diseases: 39 +* **MRI volumetric measures** for brain atrophy tracking. 40 +* **EEG functional connectivity patterns** (AI-Mind). 38 38 39 -* **ADNI**: Alzheimer's Disease Imaging & Biomarkers → [[ADNI>>url:https://adni.loni.usc.edu/]] 40 -* **PPMI**: Parkinson’s Disease Imaging & Biospecimens → [[PPMI>>url:https://www.ppmi-info.org/]] 41 -* **GP2**: Whole-Genome Sequencing for PD → [[GP2>>url:https://gp2.org/]] 42 -* **Enroll-HD**: Huntington’s Disease Clinical & Genetic Data → [[Enroll-HD>>url:https://www.enroll-hd.org/]] 43 -* **GAAIN**: Multi-Source Alzheimer’s Data Aggregation → [[GAAIN>>url:https://gaain.org/]] 44 -* **UK Biobank**: Population-Wide Genetic, Imaging & Health Records → [[UK Biobank>>url:https://www.ukbiobank.ac.uk/]] 45 -* **DPUK**: Dementia & Aging Data → [[DPUK>>url:https://www.dementiasplatform.uk/]] 46 -* **PRION Registry**: Prion Diseases Clinical & Genetic Data → [[PRION Registry>>url:https://prionregistry.org/]] 47 -* **DECIPHER**: Rare Genetic Disorder Genomic Variants → [[DECIPHER>>url:https://decipher.sanger.ac.uk/]] 42 +**Clinical & Biomarker Data:** 48 48 44 +* **CSF biomarkers** (Amyloid-beta, Tau, Neurofilament Light). 45 +* **Sleep monitoring and actigraphy data** (ADIS). 46 + 47 +**Federated Learning Integration:** 48 + 49 +* **Secure multi-center data harmonization** (PROMINENT). 50 + 49 49 ---- 50 50 51 -== ** 1. RegisterforAccess** ==53 +==== **Annotation System for Multi-Modal Data** ==== 52 52 53 -* Each external database requires **individual registration and access approval**. 54 -* Ensure compliance with **ethical approvals and data usage agreements** before integrating datasets into Neurodiagnoses. 55 -* Some repositories may require a **Data Usage Agreement (DUA)** for sensitive medical data. 55 +To ensure **structured integration of diverse datasets**, **Neurodiagnoses** will implement an **AI-driven annotation system**, which will: 56 56 57 +* **Assign standardized metadata tags** to diagnostic features. 58 +* **Provide contextual explanations** for AI-based classifications. 59 +* **Track temporal disease progression annotations** to identify long-term trends. 60 + 57 57 ---- 58 58 59 -== **2. Download& Prepare Data** ==63 +=== **2. AI-Based Analysis** === 60 60 61 -* Download datasets while adhering to **database usage policies**. 62 -* Ensure files meet **Neurodiagnoses format requirements**: 65 +==== **Machine Learning & Deep Learning Models** ==== 63 63 64 -|=**Data Type**|=**Accepted Formats** 65 -|**Tabular Data**|.csv, .tsv 66 -|**Neuroimaging**|.nii, .dcm 67 -|**Genomic Data**|.fasta, .vcf 68 -|**Clinical Metadata**|.json, .xml 67 +**Risk Prediction Models:** 69 69 70 -* **Mandatory Fields for Integration**: 71 -** **Subject ID**: Unique patient identifier 72 -** **Diagnosis**: Standardized disease classification 73 -** **Biomarkers**: CSF, plasma, or imaging biomarkers 74 -** **Genetic Data**: Whole-genome or exome sequencing 75 -** **Neuroimaging Metadata**: MRI/PET acquisition parameters 69 +* **LETHE’s cognitive risk prediction model** integrated into the annotation framework. 76 76 77 - ----71 +**Biomarker Classification & Probabilistic Imputation:** 78 78 79 - ==**3.UploadDatatoNeurodiagnoses**==73 +* **KNN Imputer** and **Bayesian models** used for handling **missing biomarker data**. 80 80 81 - ===**Option1: UploadtoEBRAINS Bucket**===75 +**Neuroimaging Feature Extraction:** 82 82 83 -* Location: **EBRAINS Neurodiagnoses Bucket** 84 -* Ensure **correct metadata tagging** before submission. 77 +* **MRI & EEG data** annotated with **neuroanatomical feature labels**. 85 85 86 -=== ** Option 2: ContributeviaGitHub Repository** ===79 +==== **AI-Powered Annotation System** ==== 87 87 88 -* Location:**GitHubDataRepository**89 -* Createa**new folderunder/data/**andincludea **datasetdescription**.90 -* **Forlargedatasets**, contact project administratorsbefore uploading.81 +* Uses **SHAP-based interpretability tools** to explain model decisions. 82 +* Generates **automated clinical annotations** in structured reports. 83 +* Links findings to **standardized medical ontologies** (e.g., **SNOMED, HPO**). 91 91 92 92 ---- 93 93 94 -== ** 4.IntegrateDataintoAI Models** ==87 +=== **3. Diagnostic Framework & Clinical Decision Support** === 95 95 96 -* Open **Jupyter Notebooks** on EBRAINS to run **preprocessing scripts**. 97 -* **Standardize neuroimaging and biomarker formats** using harmonization tools. 98 -* Use **machine learning models** to handle **missing data** and **feature extraction**. 99 -* Train AI models with **newly integrated patient cohorts**. 89 +==== **Tridimensional Diagnostic Axes** ==== 100 100 101 -** Reference**:See docs/data_processing.mdfor detailed instructions.91 +**Axis 1: Etiology (Pathogenic Mechanisms)** 102 102 93 +* Classification based on **genetic markers, cellular pathways, and environmental risk factors**. 94 +* **AI-assisted annotation** provides **causal interpretations** for clinical use. 95 + 96 +**Axis 2: Molecular Markers & Biomarkers** 97 + 98 +* **Integration of CSF, blood, and neuroimaging biomarkers**. 99 +* **Structured annotation** highlights **biological pathways linked to diagnosis**. 100 + 101 +**Axis 3: Neuroanatomoclinical Correlations** 102 + 103 +* **MRI and EEG data** provide anatomical and functional insights. 104 +* **AI-generated progression maps** annotate **brain structure-function relationships**. 105 + 103 103 ---- 104 104 105 -== ** AI-DrivenBiomarkerCategorization** ==108 +=== **4. Computational Workflow & Annotation Pipelines** === 106 106 107 - Neurodiagnosesemploys**AImodels** forbiomarkerclassification:110 +==== **Data Processing Steps** ==== 108 108 109 -|=**Model Type**|=**Application** 110 -|**Graph Neural Networks (GNNs)**|Identify shared biomarker pathways across diseases 111 -|**Contrastive Learning**|Distinguish overlapping vs. unique biomarkers 112 -|**Multimodal Transformer Models**|Integrate imaging, omics, and clinical data 112 +**Data Ingestion:** 113 113 114 +* **Harmonized datasets** stored in **EBRAINS Bucket**. 115 +* **Preprocessing pipelines** clean and standardize data. 116 + 117 +**Feature Engineering:** 118 + 119 +* **AI models** extract **clinically relevant patterns** from **EEG, MRI, and biomarkers**. 120 + 121 +**AI-Generated Annotations:** 122 + 123 +* **Automated tagging** of diagnostic features in **structured reports**. 124 +* **Explainability modules (SHAP, LIME)** ensure transparency in predictions. 125 + 126 +**Clinical Decision Support Integration:** 127 + 128 +* **AI-annotated findings** fed into **interactive dashboards**. 129 +* **Clinicians can adjust, validate, and modify annotations**. 130 + 114 114 ---- 115 115 116 -== [[image:workflowneurodiagnoses.png]]==133 +=== **5. Validation & Real-World Testing** === 117 117 118 -== ** Collaboration& Partnerships** ==135 +==== **Prospective Clinical Study** ==== 119 119 120 -=== **Partnering with Data Providers** === 137 +* **Multi-center validation** of AI-based **annotations & risk stratifications**. 138 +* **Benchmarking against clinician-based diagnoses**. 139 +* **Real-world testing** of AI-powered **structured reporting**. 121 121 122 - Neurodiagnosesseekspartnershipswithdatarepositoriesto:141 +==== **Quality Assurance & Explainability** ==== 123 123 124 -* Enable **API-based data integration** for real-time processing. 125 -* Co-develop **harmonized AI-ready datasets** with standardized annotations. 126 -* Secure **funding opportunities** through joint grant applications. 143 +* **Annotations linked to structured knowledge graphs** for improved transparency. 144 +* **Interactive annotation editor** allows clinicians to validate AI outputs. 127 127 128 - **Interested in Partnering?**146 +---- 129 129 130 -* If you represent a **research consortium or database provider**, reach out to explore **data-sharing agreements**. 131 -* **Contact**: [[info@neurodiagnoses.com>>mailto:info@neurodiagnoses.com]] 148 +=== **6. Collaborative Development** === 132 132 150 +The project is **open to contributions** from **researchers, clinicians, and developers**. 151 + 152 +**Key tools include:** 153 + 154 +* **Jupyter Notebooks**: For data analysis and pipeline development. 155 +** Example: **probabilistic imputation** 156 +* **Wiki Pages**: For documenting methods and results. 157 +* **Drive and Bucket**: For sharing code, data, and outputs. 158 +* **Collaboration with related projects**: 159 +** Example: **Beyond the hype: AI in dementia – from early risk detection to disease treatment** 160 + 133 133 ---- 134 134 135 -== ** FinalNotes** ==163 +=== **7. Tools and Technologies** === 136 136 137 - Neurodiagnosescontinuously expands its**data ecosystem** to support **AI-driven clinical decision-making**.Researchers and institutions are encouraged to **contribute new datasets and methodologies**.165 +==== **Programming Languages:** ==== 138 138 139 -** For additionaltechnicaldocumentation**:167 +* **Python** for AI and data processing. 140 140 141 -* **GitHub Repository**: [[Neurodiagnoses GitHub>>url:https://github.com/neurodiagnoses]] 142 -* **EBRAINS Collaboration Page**: [[EBRAINS Neurodiagnoses>>url:https://ebrains.eu/collabs/neurodiagnoses]] 169 +==== **Frameworks:** ==== 143 143 144 -**If you experience issues integrating data**, open a **GitHub Issue** or consult the **EBRAINS Neurodiagnoses Forum**. 171 +* **TensorFlow** and **PyTorch** for machine learning. 172 +* **Flask** or **FastAPI** for backend services. 145 145 174 +==== **Visualization:** ==== 175 + 176 +* **Plotly** and **Matplotlib** for interactive and static visualizations. 177 + 178 +==== **EBRAINS Services:** ==== 179 + 180 +* **Collaboratory Lab** for running Notebooks. 181 +* **Buckets** for storing large datasets. 182 + 146 146 ---- 147 147 148 -This **updated methodology** now incorporates [[https:~~/~~/github.com/Fundacion-de-Neurociencias/neurodiagnoses/blob/main/data/biomarker_ontology>>https://Neuromarker]] for standardized biomarker classification, enabling **cross-disease AI training** across neurodegenerative disorders. 185 +=== **Why This Matters** === 186 + 187 +* **The annotation system ensures that AI-generated insights are structured, interpretable, and clinically meaningful.** 188 +* **It enables real-time tracking of disease progression across the three diagnostic axes.** 189 +* **It facilitates integration with electronic health records and decision-support tools, improving AI adoption in clinical workflows.**
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