Volume representation without noise and garbage

You can’t export volume rendering as a 3D mesh, this visualization method does not create a model. Please refer to other topics for more details.

You are most likely looking for surface rendering: you would need to perform segmentation (Segment Editor/Segmentation modules) on your loaded DICOM images. Then you can clean it up with available tools (brushes, scissors, smoothing etc.) to your liking and export as a 3D mesh.

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