For communication and marketing purposes in the medical field, it is mostly difficult to use real images. On the one hand for reasons of precision and on the other hand out of aesthetic reasons. However, with the help of 3D visualizations (CGI), this can not only be avoided, but also provides the viewer with the opportunity to see hidden elements more clearly or for better understanding in a cross section.
Furthermore, this creates another opportunity to establish a unique look and feel with the created image materials, which can help a company differentiate itself from its competitors.