How can I remove metal artifacts from CT? Which plugin should I use?

Most successful metal artifact reduction is projection-based. You would need to process the sinogram data, replace metal in sinogram with interpolated data, and then reconstruct. I have never heard of anyone doing this in 3D Slicer. Alternatively, you might segment out the artifacts manually and …

I am an orthopedic surgeon. I tried to use “3D slicer” for pre-operative and post-operative CT scan for comparison and decide bone reduction quality after surgery in acetabulum fractures. With threshold masking, 3D slicer was perfectly reconstructed pelvis bone from pre-operative CT scan, but due to…

I see, thank you for explaining. For your application, I think you will want a projection-based metal artifact reduction implementation. Since all major CT vendors offer this capability, one option could be to find an imaging centers in your area that can do this, and then refer the patient(s) to …

I fully agree with @gcsharp that the best results can be achieved with using proper imaging equipment. If it is not possible to get a better scan and the current scan is good enough so that you can distinguish metal artifact from bone then you may be able to clean up the segmentation manually or use…

CT scan can supress metal artefacts but unfortunately, we used our database for research and old CT scanS were not avaliable for this process. So i tried to use 3d slicer but as far as I understand, the program is not suitable for it.

[image] igaschi: i tried to use 3d slicer but as far as I understand, the program is not suitable for it. In general, you cannot effectively remove metal artifacts after reconstruction fully automatically. For specific use cases it is possible to create post-processing methods to suppress met…

I used appropriate threshold masking for bone and plate. After that, i was segmented all bone parts and plate. In coronal, sagittal and axial images, I were painted all segments after than with growing seed, I was reconstructed model. Cortical bone’s threshold density and plate’s threshold density w…

CT/ Metal Artefact

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CT/ Metal Artefact

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