Inspiration

Brain tumors tragically claim thousands of lives each year, and in countries like India, the shortage of radiologists (about 1 per 100,000 people) makes timely diagnosis extremely difficult. Long waiting times for MRI reports, especially in rural and semi-urban areas, motivated us to create TumorX—a system that combines AI, privacy-preserving federated learning, and explainable diagnosis to bridge the gap between medical need and available expertise.


What it does

TumorX is an AI-powered assistant for early tumor detection from MRI scans.

  • For Patients → Provides a simple report: Tumor Present/Not Present, urgency score (Low / Medium / High), and next steps.
  • For Doctors → Generates explainable Grad-CAM heatmaps, tumor metrics (volume, size, centroid), growth projection, and exportable reports for treatment planning.

How we built it

  1. MRI Input: Accepts scans .
  2. Preprocessing & QIP: Images resized, normalized, and enhanced with Quantum Image Processing (QIP) to highlight subtle anomalies.
  3. AI Model: A hybrid deep learning model with VGG16 backbone classifies into four categories (Glioma, Meningioma, Pituitary, Healthy) and segments affected regions.
  4. Federated Learning: Training occurs locally at hospitals; only encrypted weights are shared, aggregated into a global model.
    • Communication cost:
      [ O(n \cdot d) ]
      where (n) = number of clients and (d) = dimensionality of model updates.
  5. Explainability: Grad-CAM generates visual heatmaps for trust and interpretability.
  6. Dashboards:
    • Patient Dashboard → Easy-to-understand results.
    • Doctor Dashboard → Detailed analytics with reports.

Our stack: Spring Boot + FastAPI (backend), MongoDB (database), and Flower (federated learning).


Challenges we ran into

  • Federated Learning Complexity → Handling non-IID (non-identically distributed) hospital data, heterogeneous devices, and high communication overhead.
  • Security & Privacy → Even with federated learning, model updates risk leaking data; we integrated homomorphic encryption for stronger protection.
  • Explainability → Building trust was hard since most AI models are black boxes; Grad-CAM was essential for transparency.
  • Performance Balance → Ensuring accuracy without sacrificing speed or accessibility across different hospital setups.

Accomplishments that we're proud of

  • Built a hybrid deep learning + federated learning pipeline for secure tumor detection.
  • Integrated explainable AI with visual heatmaps, enabling trust among doctors.
  • Ensured patient privacy while still improving a global model collaboratively.
  • Created dual dashboards tailored for both patients and doctors.

What we learned

  • Medical AI adoption depends not just on accuracy but on trust, privacy, and accessibility.
  • Federated learning can solve privacy issues but introduces system heterogeneity challenges.
  • Explainability is as important as performance in healthcare AI.
  • The parallels between model confidence and spontaneity in thermodynamics, where:

[ \Delta G^\circ = -RT \ln K_{eq} ]

show that just like negative (\Delta G^\circ) indicates spontaneous reactions, higher model confidence indicates more reliable predictions.


What's next for TumorX

  • Pilot Deployment in partner hospitals for real-world validation.
  • Digital Twin Integration → simulate tumor growth and treatment responses.
  • Blockchain + QKD-secured Federated Learning → for tamper-proof, quantum-safe data exchange.
  • Neuromorphic Chip Deployment → faster, energy-efficient AI inference at hospitals.
  • Expand beyond brain tumors to other oncological and neurological disorders.

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