Dear Jairo,
there are no parameters that can be fine-tuned for the longitudinal pipeline. However, the common parameters for the CAT12 segmentation can be changed, which is only recommended if the segmentation quality shows some issues.
It's difficult to give some advices without further knowledge about the sample size, the used paradigm and the MR-sequence. There are many factors that influence your ability to detect something. It even might be that the expected changes are simply too small (or your sample size) to be detected with sufficient statistical power.
Best,
Christian
On Tue, 22 Jan 2019 19:16:57 +0000, Jairo Pico <[log in to unmask]> wrote:
>Hello,
>
>currently I am trying to perform a short-term longitudinal study using CAT12. The study is quite similar to the example presented in the manual consisting of one group with two timepoints. Until now, using the default parameters and following the manual's example, no changes were detected. Obviously this can be a result, but my question is if there are some parameters in the longitudinal processing that I can modify to get more "sensibility" in short-term cases.
>
>Thanks in advance for your answers.
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