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caitlin-leonard/README.md

Medical AI

Medical Imaging AI

Deep Learning for Clinical Applications · Image Segmentation · Biosignal Analysis


Hi, I'm Caitlin 👋

I specialise in AI-driven medical imaging — building deep learning pipelines for segmentation, classification, and clinical decision support across MRI, CT, X-ray, and EEG modalities.

Medical AI Intern @ Perfint Healthcare — interventional oncology imaging platform
Research Intern @ Sudha Gopalakrishnan Brain Centre, IIT Madras — foetal MRI segmentation, stroke MRI analysis
Research Intern @ Computational Neuroscience & Neural Engineering Lab, IIT Madras — EEG deep learning


Core Expertise

🩻 Medical Image Segmentation — 3D U-Net, SegResNet, Attention U-Net (ISLES 2022, MONAI)
🧠 Neuroimaging — NIfTI processing, FSL, ANTs, ITK-SNAP, 3D Slicer, NiftyMIC
📡 Biosignal Analysis — EEG preprocessing, spectral features, MNE, PhysioNet datasets
🔬 Clinical AI Pipelines — end-to-end DL from DICOM/NIfTI to inference, FastAPI deployment


Key Results

  • Stroke lesion segmentation — Separate-Encoder U-Net, mean Dice 0.563 (ISLES 2022)
  • Brain tumour detection — MobileNetV2, 90% accuracy, 0.97 AUC
  • Pneumonia classifier — CNN deployed via FastAPI

📫 LinkedIn

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  1. Seizure-analysisSeizure-analysisPublic

    Preictal seizure analysis on the Siena Scalp EEG dataset

    Python 5

  2. cervix-estimation-colposcopycervix-estimation-colposcopyPublic

    Image processing pipeline to estimate cervix size and visibility percentage from colposcopy images using ellipse fitting and OS-based calibration

    Python

  3. ischemic-stroke-lesion-segmentationischemic-stroke-lesion-segmentationPublic

    Comparative study of 3D deep learning architectures (U-Net, Attention U-Net, SegResNet, Separate-Encoder U-Net) for ischemic stroke lesion segmentation on ISLES 2022

    Jupyter Notebook

  4. brain-tumor-detectionbrain-tumor-detectionPublic

    Binary brain tumour classification from MRI using MobileNetV2 transfer learning — 90% accuracy, 0.97 AUC

    Python

  5. mri-toolsmri-toolsPublic

    Medical image processing tools for MRI segmentation — cropping, mask hole filling, and penumbra analysis. Built during a research internship at the Sudha Gopalakrishnan Brain Centre, IIT Madras.

    Python

  6. pneumonia-xray-fastapi-apppneumonia-xray-fastapi-appPublic

    FastAPI-based web app for classifying chest X-ray images as Normal or Pneumonia using a CNN model

    Python