For loop on a 3D matrix

I have a CT image which is double with a size of 512 x 512 x 176 I'm looking to take a range of slices individually for analysis for instance slices 40 - 60. I'm currently using:

for I = 3Dmatrix(:, :, 40:60)
  %Algorithms code 
end

Answer 1

[James Tursa]

Does this do what you want?

for I = 40:60
  my3Dslice = my3Darray(:,:,I);
  %Algorithms code 
end

[Nick Prince]

Yes it was thank you very much

[Nandini Chatterjee]

What if you don't know the slices you want to analyze? For example, I want have an annotated CT image of size 512 x 512 x 38 and I need to find the slices which contain the annotated tumor (which are white and the background is grey).

[James Tursa]

@Nandini: Open up a new Question for this with the details of your problem.

[Nandini Chatterjee]

https://www.mathworks.com/matlabcentral/answers/514650-for-loop-on-a-3d-matrix-to-get-a-range-of-slices