[Mrtrix-discussion] TDI map differs from FA map

[Todd Jolly]

Hi everyone,
I have been performing whole-brain tracking and using this to generate track density images. I have noticed that the track density images differ from my anatomical or FA images. The TDI appear to be including regions that the anatomical images are classifying as being the lateral ventricle. This is most noticeable for the genu of the corpus callosum.
I am concerned as these regions that are classified as CSF in the anatomical and FA images appear have the highest track density in the TDI? Is this normal for there to be a discrepancy or have I made an error somewhere in the processing of these data?
Thanks in advance
Todd
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