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### Variable slice thickness CT reconstruction

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```Hi,

I have slice images that I can process and interpolate and reconstruct the 3d image.  My current analysis assumes that the thickness between slices are equal but in reality they are different.  I have the individual thickness measurements.

This will change the final result due to the different interpolation distances.  Has anyone dealt with this problem?

Thanks
```
 0
Reply Paul 11/19/2010 5:01:04 AM

```"Paul " <pa.selvadurai@gmail.com> wrote in message <ic50ag\$p23\$1@fred.mathworks.com>...
> Hi,
>
> I have slice images that I can process and interpolate and reconstruct the 3d image.  My current analysis assumes that the thickness between slices are equal but in reality they are different.  I have the individual thickness measurements.
>
> This will change the final result due to the different interpolation distances.  Has anyone dealt with this problem?
>
> Thanks

I haven't dealt with this problem, but you could use interp3 or griddata3 to make the slices uniform.
```
 0
Reply Sean 11/19/2010 3:52:03 PM

```"Sean de " <sean.dewolski@nospamplease.umit.maine.edu> wrote in message <ic66f3\$40k\$1@fred.mathworks.com>...
> "Paul " <pa.selvadurai@gmail.com> wrote in message <ic50ag\$p23\$1@fred.mathworks.com>...
>
> I haven't dealt with this problem, but you could use interp3 or griddata3 to make the slices uniform.
==============

You could even use interp1, since you woul be interpolating only along one dimension (slices).
```
 0
Reply Matt 11/19/2010 4:10:06 PM

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