Hi all,
I segmented the whole femur of a patient (including the tibia portion) and extracted its 3-D model, but it is not hollow, while I segmented the femur of that patient without tibia portion and extracted its 3-D model, it is hollow. I used the same method for theses two models and minimum and maximum threshold values are 226 and 3071 respectively for these two models.
I want to have the hollow 3-D model of femur including tibia portion. Would you please help me to remove this problem?
Best regards,
sometimes when you reconstruct a 3D model out of CT images, it is not so easy for the software to recognise all the boundaries by simply using thresholds. One thing you could do is by using ImageJ to sharpen or increase the contrast of the image before the 3D reconstruction. Or a more direct but time consuming way is to go through slice by slice, in the frontal or sagittal plane of course for a tibia and remove parts that doesn't belong to a tibia.
Hi Mr. Hasani,
See the papers that I send to you. So, you should find your reponses. However I have some doubt; Do you use a commercial software? Do you want to apply this model exactly where? What kind of analysis?
Best regards,
3D Slicer (www.slicer.org) has great manual and automatic segmentation tools. It's free, open-source, available on all platforms. Download the latest nightly version (not the latest stable, as there have been many improvements since the last stable) and use the Segment Editor module. See for example this tutorial to get started: https://www.slicer.org/wiki/Documentation/Nightly/Training#Segmentation_for_3D_printing. Feel free to write to the slicer-users mailing list if you have any questions.
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