Strange span results

[Kate Anderssen]

Hello,

I have been using DSI studio to analyse DTI data and getting very interesting results. However, I have been getting some strange results for span and curl. For most of the samples, I am getting an average span that is longer than the average length, which then results in a curl that is less than 1. Any ideas? I've tried adjusting various parameters without much change.

Cheers,

Kate

[Frank Yeh]

Hi Kate,

    Did you have an isotropic resolution?

Best,

Frank

--
You received this message because you are subscribed to the Google Groups "DSI Studio" group.
To unsubscribe from this group and stop receiving emails from it, send an email to dsi-studio+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/dsi-studio/82eaba55-7ac5-46b9-a6f2-23697393fd42n%40googlegroups.com.

[Kate Anderssen]

Hi,

No, unfortunately the slices are only 1mm thick while the resolution in plane is about 310 micron. 

Cheers,

Kate

[Frank Yeh]

The correct calculation needs isotropic resolution.

I am sorry that all length or area measures may not work correctly.

Frank

To view this discussion on the web visit https://groups.google.com/d/msgid/dsi-studio/2aa52277-3224-45c0-a413-d6f181b605e2n%40googlegroups.com.