3D Visualization of DICOM datasets using a MakerBot
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3D Visualization of DICOM datasets using a MakerBot






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    3D Visualization of DICOM datasets using a MakerBot 3D Visualization of DICOM datasets using a MakerBot Presentation Transcript

    • Three Dimensional Radiologic Visualization and Modeling in Clinical Practice Kaylesh Pandya, OMS-IV Nova Southeastern University College of Osteopathic Medicine
    • Objectives
        • Overview of diagnostic radiology technologies, shortfalls
        • Introduce Osirix DICOM viewer and demonstrate 3D reconstructions
        • 3D Printing and modeling of CT using a MakerBot
    • Introduction
        • Diagnostic radiology is a staple of most fields of medicine - guides both diagnosis and treatment
          • Taught as a core competency starting in medical school
          • Requires understanding and knowledge of anatomy, imaging modality physics,
          • 'thinking in three dimensions while seeing in only two'
        • Only 1.2% of US physicians are radiologists (AMA)
          • Even fewer patients are radiologists!
          • Communicating radiology findings between medical professionals and with patients can be difficult
    • DICOM Medical Imaging Format
      • D igital  I maging and  CO mmunications in  M edicine
        • Industry standard file format and network communication protocol for storing, retrieving, and manipulating medical imaging 
        • Allows for centralized server storage of radiology studies
          • PACS - P icture A rchiving and C ommunication S ystem
        • "Mix and match" DICOM viewers depending on specialty and modality:
          • X-ray
          • CT
          • MRI
          • PET / PET-CT
          • U/S
          • Bone Scan
    • Imaging studies
        • Radiology modalities and technologies are evolving, yet interpreting these studies has remained relatively static
          • PACS systems
          • 2D viewing on-screen
          • Printed films
          • Outside studies on CD
            • Different viewers depending on the imaging center
            • May not be opened on hospital-owned computers (security settings)
          • Difficult to view radiologic imaging at point-of-care
    • OSIRIX - osirix-viewer.com
        • Full featured DICOM / PACS viewing system for Mac
        • Free for non-medical use, $600 for FDA-approved
          • iPad / iPhone version
        • Extensive 3D (4D, 5D) viewing capability in clinical context
        • Can export and interoperate with 3D modeling formats
          • Same tools used in other industries & sciences
            • Virtual Reality
            • CNC Mills 
            • Rapid Prototyping
              • MakerBot
              • P&O?
    • 2D vs 3D Visualization of a CVA 
      • B.E.: 70M c/o 3 days confusion, difficulty reading
      • CT: Large left-sided parietal-occipital hemorrhage
      • Neuro: Transcortical sensory aphasia
    • 3D Visualization of a Head Trauma
      • 20Y, unknown history (anonymized CT)
      • s/p L Decompressive Craniectomy
      • s/p L Inferior Orbit Reconstruction
    • 3D CT Reconstructions Using OSIRIX
    • 3D Modeling using a Makerbot
      • Automated 3D Desktop printer
        • Uses ABS, PVA, PLA extruded through a heated nozzle
      • ~$1500, sold as a DIY kit (similar to IKEA)
      • Open source design
        • Allows and encourages users to modify their Makerbot
    • Makerbot 101 (makerbot.com)
    • Workflow for CT to MakerBot Data Transformation Resource
      • Export CT to ‘Surface Rendered’ Object
        • Pick appropriate density level for imaging
      Osirix (osirix-viewer.com)
      • “ Clean up” 3D model
        • Reduce detail level
        • Fill in dead spaces
        • Add scaffolding
      Blender (blender.org) MeshLab (meshlab.sourceforge.net) SketchUp (sketchup.google.com Generate Machine Code and print to MakerBot ReplicatorG (replicat.org) MakerBot (makerbot.com
    • Applications and Implications
      • Patient and family education
      • Surgical and Rehab planning
      • Medical education
      • Prosthetics and Orthotics prototyping
      • FDA – approved implantable parts in the future?
      • HIPAA issues of manufacturing 3D models?
      • Souvenirs?
    • Acknowledgements
        • Allhandsactive.com
        • @Ech0labs
        • Matthew Oishii
        • Blender.org
        • hackerspaces.org
        • @hackerspaces
        • @i3detroit
        • i3detroit.com
        • @makerbot
        • wiki.makerbot.com
        • Osirix-viewer.com