Enhancing Treatment Accuracy for Breast Cancer Patients in Brazil's Public Healthcare System

Organization
FM-USP
Role
Machine Learning Engineer & Data Scientist
Timeline
Aug 2022 - Oct 2022
Target Audience
Oncologists and healthcare professionals at Hospital das Clínicas
Enhancing Treatment Accuracy for Breast Cancer Patients in Brazil's Public Healthcare System

A machine learning predictive model that analyzes breast cancer evolution variability and treatment responses to estimate patient risk levels and survival rates. Using electronic medical records from 3,769 patients across four breast cancer subtypes (Luminal-A, Luminal-B, HER-2, and TNBC), the model helps healthcare professionals make more informed treatment decisions and optimize resource allocation in Brazil's public healthcare system (SUS).

Goals

Predict breast cancer evolution variability and treatment responses

Estimate patient survival rates categorized by quartiles

Enable efficient resource allocation in public healthcare system

Support personalized treatment planning based on data-driven insights

Improve quality of life through optimized consultation scheduling

Challenges

Processing 61,684 records with 104 columns from dispersed medical data

Handling biased data from tertiary-level hospital specializing in complex cases

Addressing data quality issues including missing values and inconsistencies

Preventing overfitting while maintaining model generalization capability

Ensuring clinical relevance while meeting privacy regulations

Outcomes

Achieved 74.70% accuracy using K-Nearest Neighbors model

Successfully compared Decision Tree, KNN, Neural Networks, and SVM models

Identified key predictive features: tumor duration, menarche age, patient age

Implemented CRISP-DM methodology for structured data mining

Developed comprehensive data treatment pipeline for medical records

Technologies

PythonScikit-learnPandasNumPyMatplotlibGoogle ColabJupyter Notebook

Let's build something together.

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.

© 2025 Elias Biondo. Based in São Paulo, Brazil.