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Can anyone help me with my actual problem, please:

I have a CT-Volume and want to bring back a bone fracture into alignment virtually. So I think I have to segment the data. Afterwards I need a tool (like Photoshop) to move the two parts in their correct position (rotate / translate interactively). And what tool do I need to bring the CT-bones in a 3D-model (like in CAD)? The aim of this project is to have a functional simulation of the CT bones at the end. I have experience in image processing, but never had to do with 3d-modelling…

Thanks, Thomas

Hi,

I believe there are couple of softwares which helps to create 3D models from CT slices such as Mimics ( need licence) or http://www.simpleware.com/ ( I think they have a trial version) or Matlab ? Once you create your 3D model ( surface and volumetric mesh) you can save it into a common .STL format, which could later be converted into .VTP ( using Paraview or similar ) for use in Opensim. Then in Opensim you can make custom joints and then add the geometry file ( your bones) by editing the xml files where you can rotate the model etc.

I may be completely wrong here.. but hope it will provide you with some idea and do look into other users suggestions.

All the best,

Nithin

CTs and MRIs are often composed of hundreds of images. I have worked in hospitals doing clinical rotations and have some ability to read what I see. It's the compilation of those hundreds of images that make it possible to get a good 3D "all around" image. They are done a layer at a time sometimes in millimeters per layer, and it is necessary to have a good background in anatomy to know what you are looking at. With Invasalius you can move through each layer but if you don't know what a pituitary gland looks like you'll miss it. If you can find a "Visible Brain" or Visible Skull or Visible man or woman at a hobby store it will give you a better feel for what you are looking at. If that seems like a childish idea it really isn't. Also check out an anatomy book, specifically Tortora and Anagnostacos Anatomy and Phsiology. The pics are wonderful. There may be a better book but that is the one that got me through A&P.

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