MATLAB: Convert CT slice to 3d array

3darrayct

Hello !

I am writing to see if somebody can help me to know how to convert CT slice to 3D array to use it in marching cubes ISO-surface extraction ,

and do i use one ct slice or more than one to convert it to 3d array?

Every little help is greatly appreciated!

thanks .

Best Answer

Each slice is one plane of a three-dimensional array. Of course each slice can be a one voxel thick three-dimensional array if it traverses the third-dimension of if you associate it with a thickness. Typically, for CT/MRI images, you would stack multiple planes together and then analyze the volume created by them. This would be required for mcubes since they expect a "cube".

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dicomread() can return a 3 or even 4 dimensional array for some kinds of data. Your code assumes that it is returning a 2 dimensional array.

Your code uses the variable "ct", which hints that you might be reading CT datasets. CT datasets are often multiple slice, 3 dimensional.

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