You can stack up the dicom images to form a 3D vtkImageData and save it as a vti-file.
This can be done using a simple python script, and will allow you to inspect your data using Paraview.
Then, if you want to try the volume rendering of Blender you should convert the vti to a vdb.
I wasn’t able to setup a converter in python, but in C++ is easy enough.
You may get the source code here ( but you have to figure out how to compile it on your os )