Changes for page Methodology
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... ... @@ -1,7 +1,23 @@ 1 -=== **Overview** === 1 +==== **Overview** ==== 2 2 3 -This sectiondescribesthestep-by-step processusedhe **Neurodiagnoses**projecttodevelopavel diagnosticframework forneurologicaldiseases. The methodology integratesartificial intelligence(AI),biomedicalontologies, andcomputationalneuroscience tocreateastructured,interpretable,and scalable diagnosticsystem.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 +=== **Workflow** === 6 + 7 +1. ((( 8 +**We Use GitHub to [[Store and develop AI models, scripts, and annotation pipelines.>>https://github.com/users/manuelmenendezgonzalez/projects/1/views/1]]** 9 + 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** 15 + 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 +))) 20 + 5 5 ---- 6 6 7 7 === **1. Data Integration** === ... ... @@ -8,102 +8,166 @@ 8 8 9 9 ==== **Data Sources** ==== 10 10 11 -* **Biomedical Ontologies**: 12 -** Human Phenotype Ontology (HPO) for phenotypic abnormalities. 13 -** Gene Ontology (GO) for molecular and cellular processes. 14 -* **Neuroimaging Datasets**: 15 -** Example: Alzheimer’s Disease Neuroimaging Initiative (ADNI), OpenNeuro. 16 -* **Clinical and Biomarker Data**: 17 -** Anonymized clinical reports, molecular biomarkers, and test results. 27 +**Biomedical Ontologies & Databases:** 18 18 29 +* **Human Phenotype Ontology (HPO)** for symptom annotation. 30 +* **Gene Ontology (GO)** for molecular and cellular processes. 19 19 20 - ====**DataPreprocessing**====32 +**Dimensionality Reduction and Interpretability:** 21 21 22 -1. **Standardization**: Ensure all data sources are normalized to a common format. 23 -1. **Feature Selection**: Identify relevant features for diagnosis (e.g., biomarkers, imaging scores). 24 -1. **Data Cleaning**: Handle missing values and remove duplicates. 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. 25 25 37 +**Neuroimaging & EEG/MEG Data:** 38 + 39 +* **MRI volumetric measures** for brain atrophy tracking. 40 +* **EEG functional connectivity patterns** (AI-Mind). 41 + 42 +**Clinical & Biomarker Data:** 43 + 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 + 26 26 ---- 27 27 53 +==== **Annotation System for Multi-Modal Data** ==== 54 + 55 +To ensure **structured integration of diverse datasets**, **Neurodiagnoses** will implement an **AI-driven annotation system**, which will: 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 + 61 +---- 62 + 28 28 === **2. AI-Based Analysis** === 29 29 30 -==== **M odelDevelopment** ====65 +==== **Machine Learning & Deep Learning Models** ==== 31 31 32 -* **Embedding Models**: Use pre-trained models like BioBERT or BioLORD for text data. 33 -* **Classification Models**: 34 -** Algorithms: Random Forest, Support Vector Machines (SVM), or neural networks. 35 -** Purpose: Predict the likelihood of specific neurological conditions based on input data. 67 +**Risk Prediction Models:** 36 36 37 - ====**DimensionalityReductionandInterpretability**====69 +* **LETHE’s cognitive risk prediction model** integrated into the annotation framework. 38 38 39 -* Leverage [[DEIBO>>https://drive.ebrains.eu/f/8d7157708cde4b258db0/]] (Data-driven Embedding Interpretation Based on Ontologies) to connect model dimensions to ontology concepts. 40 -* Evaluate interpretability using metrics like the Area Under the Interpretability Curve (AUIC). 71 +**Biomarker Classification & Probabilistic Imputation:** 41 41 73 +* **KNN Imputer** and **Bayesian models** used for handling **missing biomarker data**. 74 + 75 +**Neuroimaging Feature Extraction:** 76 + 77 +* **MRI & EEG data** annotated with **neuroanatomical feature labels**. 78 + 79 +==== **AI-Powered Annotation System** ==== 80 + 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**). 84 + 42 42 ---- 43 43 44 -=== **3. Diagnostic Framework** === 87 +=== **3. Diagnostic Framework & Clinical Decision Support** === 45 45 46 -==== ** AxesfDiagnosis** ====89 +==== **Tridimensional Diagnostic Axes** ==== 47 47 48 - The framework organizesdiagnosticdatainto threeaxes:91 +**Axis 1: Etiology (Pathogenic Mechanisms)** 49 49 50 -1. **Etiology**: Genetic and environmental risk factors. 51 -1. **Molecular Markers**: Biomarkers such as amyloid-beta, tau, and alpha-synuclein. 52 -1. **Neuroanatomical Correlations**: Results from neuroimaging (e.g., MRI, PET). 93 +* Classification based on **genetic markers, cellular pathways, and environmental risk factors**. 94 +* **AI-assisted annotation** provides **causal interpretations** for clinical use. 53 53 54 - ====**RecommendationSystem**====96 +**Axis 2: Molecular Markers & Biomarkers** 55 55 56 -* Suggestsadditionaltestsor biomarkersif gaps are detected in the data.57 -* Prioritizestests basedonclinicalimpactcost-effectiveness.98 +* **Integration of CSF, blood, and neuroimaging biomarkers**. 99 +* **Structured annotation** highlights **biological pathways linked to diagnosis**. 58 58 101 +**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 + 59 59 ---- 60 60 61 -=== **4. Computational Workflow** === 108 +=== **4. Computational Workflow & Annotation Pipelines** === 62 62 63 -1. **Data Loading**: Import data from storage (Drive or Bucket). 64 -1. **Feature Engineering**: Generate derived features from the raw data. 65 -1. **Model Training**: 66 -1*. Split data into training, validation, and test sets. 67 -1*. Train models with cross-validation to ensure robustness. 68 -1. **Evaluation**: 69 -1*. Metrics: Accuracy, F1-Score, AUIC for interpretability. 70 -1*. Compare against baseline models and domain benchmarks. 110 +==== **Data Processing Steps** ==== 71 71 112 +**Data Ingestion:** 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 + 72 72 ---- 73 73 74 -=== **5. Validation** === 133 +=== **5. Validation & Real-World Testing** === 75 75 76 -==== ** InternalValidation** ====135 +==== **Prospective Clinical Study** ==== 77 77 78 -* Test the system using simulated datasets and known clinical cases. 79 -* Fine-tune models based on validation results. 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**. 80 80 81 -==== ** ExternalValidation** ====141 +==== **Quality Assurance & Explainability** ==== 82 82 83 -* Collaborate with research institutionsandhospitals totesthesysteminreal-worldsettings.84 -* Use anonymized patientdatansureprivacycompliance.143 +* **Annotations linked to structured knowledge graphs** for improved transparency. 144 +* **Interactive annotation editor** allows clinicians to validate AI outputs. 85 85 86 86 ---- 87 87 88 88 === **6. Collaborative Development** === 89 89 90 -The project is open to contributions from researchers, clinicians, and developers. Key tools include:150 +The project is **open to contributions** from **researchers, clinicians, and developers**. 91 91 152 +**Key tools include:** 153 + 92 92 * **Jupyter Notebooks**: For data analysis and pipeline development. 93 -** Example: [[probabilistic imputation>>https://drive.ebrains.eu/f/4f69ab52f7734ef48217/]]155 +** Example: **probabilistic imputation** 94 94 * **Wiki Pages**: For documenting methods and results. 95 95 * **Drive and Bucket**: For sharing code, data, and outputs. 96 -* **Collaboration with related projects: **For instance: [[//Beyond the hype: AI in dementia – from early risk detection to disease treatment//>>https://www.lethe-project.eu/beyond-the-hype-ai-in-dementia-from-early-risk-detection-to-disease-treatment/]] 158 +* **Collaboration with related projects**: 159 +** Example: **Beyond the hype: AI in dementia – from early risk detection to disease treatment** 97 97 98 98 ---- 99 99 100 100 === **7. Tools and Technologies** === 101 101 102 -* **Programming Languages**: Python for AI and data processing. 103 -* **Frameworks**: 104 -** TensorFlow and PyTorch for machine learning. 105 -** Flask or FastAPI for backend services. 106 -* **Visualization**: Plotly and Matplotlib for interactive and static visualizations. 107 -* **EBRAINS Services**: 108 -** Collaboratory Lab for running Notebooks. 109 -** Buckets for storing large datasets. 165 +==== **Programming Languages:** ==== 166 + 167 +* **Python** for AI and data processing. 168 + 169 +==== **Frameworks:** ==== 170 + 171 +* **TensorFlow** and **PyTorch** for machine learning. 172 +* **Flask** or **FastAPI** for backend services. 173 + 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 + 183 +---- 184 + 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.**