FusionNet-Scratch: A Multi-Modal Diagnostic Fusion Solution to Break Medical AI's 'Data Silos'

FusionNet-Scratch is an open-source project addressing the single-modal limitations of current medical AI tools and breaking 'data silos'. It proposes an end-to-end multi-modal fusion architecture integrating images, lab tests, medical records, etc. With custom feature extractors and full-stack web architecture (Django + React), it provides practical AI solutions for remote medical care and specialist diagnosis.

Medical diagnosis inherently relies on multi-modal information (images, lab results, symptoms, history). However, most existing medical AI tools are single-modal (focusing on images, lab data, or text alone), leading to fragmented 'data silos' where AI modules cannot integrate cross-modal information like human doctors.

FusionNet-Scratch uses custom feature extractors: CNN for images, fully connected networks for lab data, NLP models for text records. These features are mapped to the same semantic space. Instead of simple concatenation, it uses attention mechanisms to dynamically adjust the weight of each modality based on the case (e.g., higher weight on images for lung diseases, lab data for metabolic diseases).

FusionNet-Scratch provides a complete full-stack solution: Django backend (stable, secure, scalable, with database abstraction and permission management) and React frontend (intuitive UI for doctors to upload data and view suggestions). The web architecture supports remote access, making it suitable for telemedicine scenarios.

1. Data integration: Standard interfaces for importing data from PACS (imaging), LIS (lab), EMR (medical records). 2. Specialist adaptation: Modular architecture allows training for specific departments (radiology, cardiology). 3. Interpretability: Provides visual explanations (attention heatmaps, key feature annotations) to help doctors understand AI decisions.

Choosing to build from scratch instead of using pre-trained models has advantages: 1. Domain adaptability: Tailored to medical data (DICOM format, device noise, medical patterns). 2. Efficiency: Optimized for resource-limited environments (e.g., primary hospitals). 3. Maintainability: Transparent code for easy iteration and bug fixes based on clinical feedback.

In telemedicine, FusionNet-Scratch acts as a 'digital替身' for remote doctors by integrating patient data (images, lab results, symptoms). For resource-poor areas, it helps primary institutions get expert-level AI assistance, reducing patient travel and improving access to care.

Limitations: 1. Data privacy: Needs stronger encryption and access control for production. 2. Regulatory compliance: Requires certification as medical devices in many regions. 3. Generalization: May lack generalization ability to unseen diseases or devices. Future: Combine custom architecture with pre-trained models to balance domain adaptability and generalization.