(I'm not a matlab user)

That the dicomfile has no dcm extension, should not matter. If fact, matlab seems to have read a 4D volume. The Z-axis has a dimension of one, so I would call it a 3D volume. It seems to be 512x512 grey-scale images and 58 time-frames.

I'm sure matlab provides a function to slice this volume.

So, loop over the timeframes, slice the volume and write each frame as tiff. Spatial and exact time information are then lost.

The sequence is for some reason in 4D, but you can rescale it in 3D by doing :

A = reshape(X, 512,512,58) (dim of A will be 512,512,58).

Then, do B = A(:,:,i), with i the number of the image you want to extract. B will contain the 512x512 image number i.

Finally, you can do imwrite(B,filename) to write the image in a file.

it didn't work. I've upload an example file(564997) instead of 14249088 because it is smaller in size....

It will be great if you could help me to solve it

It is a 512x512x20 volume. Does matlab complain when loading?

Here is the exact sequence of command I used:

A = dicomread('565997');

B = resize(A,size(A,1),size(A,2),size(A,4));

C = B(:,:,12);

imwrite(C,'YourImage.tif','tif');

This create a tif file containing the 12th image of your sequence. Replace 12 by the image number you want to save (or you can also create a loop if you want to extract all the images), and replace '565997' by the path of your file ;-)

I've written this ... but there some wrong

%extracting images

[X,map] = dicomread('564997');

B=reshape(X,size(X,1),size(X,2),size(X,4)); %reshape

for i=1:20

im(i)=B(:,:,i);

imwrite(im(i),'im(num2str(i).tif','tif');

end

here you go :

for i=1:20

imwrite(B(:,:,i),['im' num2str(i) '.tif'],'tif');

end