Extractions and 3D printing

Extractions enable better understanding of the patient’s anatomy, enhance preoperative planning and are used for education.
The Extraction module of Vesalius3D contains the tools for extraction of anatomical structures from any medical imaging modality.
The structures are extracted in a few minutes.

Example of an extraction as highlight in a visualization Example of a 3D print made from an extraction

Step by step process

Vesalius3D features a step by step process to guide users through the extraction process.
The process is easy and users can see the effect of their actions immediately.

  1. Crop: Mask using cropping planes
  2. Threshold: Mask using bandwidth of data
  3. Erase: Mask to isolate the desired parts
  4. Grow Region: Mask to select the part(s) of interest
  5. Create surface: Use Mask to create 3D structure

How does it work – Masking

Vesalius3D uses masks for extraction.
Masks are filters applied to the data that result in an extraction of the data. Vesalius3D uses a range of masks.
The combination of a set of masks is the extraction.
Typical masks are cropping boxes, threshold values, erasers, previous masks and the possibility to select single or multiple components.


  • Automatic and semiautomatic features to speed up the extraction process
  • Step by step guidance
  • Continuous feedback of actions in 2D and 3D window
  • Export 3D printable files
  • Multiple extractions in one dataset
  • Start from scratch or use a previous extraction
  • Combine or substract extractions

Some examples of how extractions in Vesalius3D are made

Extraction of an aortic arch
Watch this video on Vimeo
Extraction of a baby in the womb
Watch this video on Vimeo
Extraction of a carotis
Watch this video on Vimeo