Skip to main content
  1. Projects/

Second OpinAIon - Medical Diagnosis System

Advanced Medical Diagnosis with Causal Inference #

Second OpinAIon is a sophisticated medical diagnosis system that leverages causal inference and large language models to provide comprehensive medical analysis, diagnosis, and treatment recommendations for healthcare professionals.

Key Features #

Causal Inference Engine #

  • Causal Graph Analysis: Identifies and visualizes causal relationships between medical factors
  • Counterfactual Reasoning: Evaluates alternative scenarios to strengthen diagnostic confidence
  • Evidence-Based Diagnosis: Ranks potential diagnoses based on causal analysis

Treatment Intelligence #

  • Treatment Categorization: Classifies treatments as causal, preventative, or symptomatic
  • Patient-Specific Planning: Tailors treatment plans to individual patient needs
  • Comprehensive Reporting: Generates detailed PDF reports for documentation

AI-Powered Analysis #

  • Multi-Stage Workflow: Systematic approach from factor extraction to final treatment plan
  • Interactive Visualization: Dynamic causal graphs and treatment comparisons
  • Natural Language Interface: Chat-based interaction with the AI assistant

Technical Architecture #

Core Components #

Medical Factor Extraction #

# Identifies from patient cases:
- Symptoms and conditions
- Test results and vital signs
- Medical history factors
- Environmental influences

Causal Analysis Pipeline #

  • Establishes causal relationships (e.g., “Appendicitis → Right Lower Quadrant Pain”)
  • Validates completeness of medical information
  • Performs counterfactual analysis for alternative explanations
  • Ranks diagnoses based on causal evidence

Treatment Planning System #

  • Causal Treatment: Addresses root causes
  • Preventative Care: Prevents complications
  • Symptomatic Management: Provides relief while treating causes
  • Personalized Adjustments: Considers patient-specific factors

Workflow Stages #

Initial Analysis

  • Patient case entry
  • Medical factor extraction
  • Causal relationship mapping

Diagnosis Phase

  • Information validation
  • Counterfactual analysis
  • Diagnosis generation

Treatment Planning

  • Treatment identification
  • Patient-specific tailoring
  • Final plan generation

Technology Stack #

  • AI Framework: Azure OpenAI API for LLM capabilities
  • Backend: Python with Streamlit for web interface
  • Visualization: Interactive causal graph generation
  • Documentation: Automated PDF report generation
  • Analysis: Causal inference algorithms and counterfactual reasoning

Use Cases #

Clinical Decision Support #

  • Assists healthcare professionals in complex diagnoses
  • Provides second opinions with causal explanations
  • Identifies potential missed diagnoses through counterfactual analysis

Medical Education #

  • Demonstrates causal reasoning in medical diagnosis
  • Visualizes relationships between symptoms and conditions
  • Provides comprehensive case analysis for learning

Documentation & Compliance #

  • Generates detailed medical reports
  • Maintains audit trail of diagnostic reasoning
  • Supports evidence-based medicine practices

Safety & Ethics #

This system is designed as a decision support tool for healthcare professionals:

  • Not intended to replace clinical judgment
  • Requires medical expertise for interpretation
  • Emphasizes transparency in causal reasoning
  • Maintains patient privacy and data security