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Med-LIFE: A System for Medical Imagery Exploration Joshua New Erion Hasanbelliu Introduction What is Med-LIFE? What is image fusion? How do I teach the computer? How can I view the results? What is Med-LIFE?

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Presentation Transcript
introduction
Introduction
  • What is Med-LIFE?
  • What is image fusion?
  • How do I teach the computer?
  • How can I view the results?
what is med life
What is Med-LIFE?
  • Med-LIFE is an application currently under development to use computer processing techniques to reduce medical personnel workload
  • GUI designed with QT
  • Image Processing with C (and VTK library)
what is med life4
What is Med-LIFE?
  • Consists of Three Processes (LIFE):
    • Learning of image attributes by the computer using SFAM
    • Image Fusion of many image modalities into one color image
    • Exploration of learning and fusion results
what is image fusion
What is image fusion?
  • Allows the combination of multiple image modalities into one colored image with no information loss
  • Reduces workload by eliminating the number of images a radiologist must analyze
  • Images used from “The Whole Brain Atlas”
    • http://www.med.harvard.edu/AANLIB/home.html
what is image fusion6
What is image fusion?
  • Technique similar to primate vision
image fusion example

GAD

PD

Color Fuse Result

SPECT

T2

Image Fusion Example
how do i teach the computer
How do I teach the computer?
  • SFAM – Simplified Fuzzy ARTMAP
  • SFAM is a computer-based system capable of online, incremental learning
  • Two “vectors” are sent to this system for learning:
    • Input feature vector tells what data is available from which to learn
    • Supervisory signal tells whether that vector is an example or counterexample
how do i teach the computer10

Main Window

Zoom Window

How do I teach the computer?
  • Left-click to define examples (green)
  • Right-click to define counterexamples (red)
how do i teach the computer11
How do I teach the computer?
  • Supervisory signal from red/green marks
  • Feature vector from slice pixel values for original, single, and double opponent images
how can i view results
How can I view results?
  • Display a plethora of information
  • Skull generated for patient from PD modality for contextual slice navigation
  • Explore tab provides several functions:
    • Original images
    • Fusion results imbedded within 3D, patient-generated skull
    • Learning results
demo presentation
Demo Presentation
  • Erion will now demo the Med-LIFE system
conclusion
Conclusion
  • Med-LIFE offers reduced workload to physicians who scan multiple images
    • Image processing and fusion reduces the number of images to be analyzed
    • Learning system allows the computer to perform prescreening or background analysis
    • Exploration allows immersion within the data for operational planning