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    • Worked Example: 3D Slicer (Lung)
    • Worked Example: Seg3D (Rib)
    • Completed Examples >
      • Ribs
      • Kidney
      • Brain
  • STL to Print
    • Cura (Ultimaker)
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  • Home
  • Printing Techniques
  • Design Considerations
    • General
    • Ultimaker
    • FormLabs
  • CAD Software
    • Onshape >
      • Basics
      • Sketching
      • Constraints
      • Extrude
      • Revolve
      • Fillet & Chamfer
      • Shell & Draft
      • Direct Editing
    • FreeCAD >
      • Turner's Cube
      • Whiffle Ball
      • Casino Dice
      • Bearing Bracket
      • Fork Bearing
      • Compression Spring
      • Propeller
      • Inner Threads
      • Outer Threads
      • Heart Shaped Ashtray
      • Bird Feeder
      • Ball Bearing
  • Image to STL
    • Medical Images
    • Segmentation
    • Refinement
    • Worked Example: 3D Slicer (Lung)
    • Worked Example: Seg3D (Rib)
    • Completed Examples >
      • Ribs
      • Kidney
      • Brain
  • STL to Print
    • Cura (Ultimaker)
    • Preform (Formlabs)

Extract a Mesh from a CT Scan

It is a challenging endeavour to extract the mesh of organs from a medical image. We have developed a pipeline that will help you do just that.
Medical IMAGEs ​
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SEGMENTATION
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MESH REFINEMENT
The process starts with a 3D medical image, from which a structure will be extracted. The particular nature of the image will inform how it is processed.

Key considerations include:
•Imaging modalities
•Types of data and file formats
•Loading and viewing the data
​Segmentation is the extraction of a 3D volume from a set of image data.

Here, we introduce:
•Freely available example software
•Simple and advanced segmentation algorithms
•Exporting the segmentation
​Refinement refers to the wide range of techniques used to convert a rough 3D segmentation into a finished, printable model.

Here, we introduce:
•Basic refinement techniques
•A range of useful software and their relative merits
Worked example: 3D Slicer
Follow this step by step guide to perform a segmentation of a lung using the 3D slicer segmentation software
Worked Example: Seg3D
Follow this step by step guide to perform a segmentation of a set of ribs using the Seg3D segmentation software
final model examples
Various examples of completed models and 3D prints, produced using the methods outlined

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