I have seen a number of questions related to the title. I even experienced the question myself. Here, i would like to document my approach.
If you are in the medical imaging field, at the time of writing, you are almost guaranteed that you'd need to reconstruct a 3D volume based on a stack of 2D images(let it be a stack of 'gray-scale' images). The question is how in Matlab?
The Possible Solutions
The above writing is documented here but was aiming at answering this question on StackOverflow.