I just need a bit of advice, pic related is a quick model made

>>573881
hey man, unsoften the mesh, extract the perimeter of each piece and join it with a plugin called curviloft, search it on youtube it does just what you need.

File: cloudshit.jpg (96KB, 959x630px) Image search: [Google]

96KB, 959x630px

>>573881
I'm not sure if exactly what you need, but I worked on a similar sounding problem.

I work for a company that does dispersion modeling for petrochem/oil & gas facilities, and long story short, they wanted to show the clouds in 3D. Well the program we have that does the actual dispersion modeling is old as fuck, and the best i could get was "slices" of the cloud, much like you have "slices" of the scan there. I wrote some relatively simply python code to create a new mesh and stitch the slices together. i don't know what the MRI data looks like, but that may be your best option for getting a real smooth model.

pic related

http://www.meshlab.net/

>>573881
If you can export the slices as splines, you can use literally any 3D program to join them as a nurbs surface or even just a regular poly skin.

use meshlab
cube march it

and then smooth