Strange Abnormality or Artifact in FA Map – Any Thoughts?

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Hi everyone,

I’m relatively new to working with DWI/DTI images, and while reviewing my FA maps, I noticed what looks like an abnormality or possible artifact. I’ve attached an image below, there’s a bright spot that doesn’t look anatomical or expected.

I’m not sure if this could be due to preprocessing, acquisition artifacts, or something else. Has anyone seen something like this before? I’d really appreciate any advice or suggestions on what might be going on.

Thanks so much!

abnormality
abnormality3016×1326 133 KB

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Hi @RoSha and welcome to neurostars!

Are you referring to the corpus callosum? That is typically a high FA region. And more information about your preprocessing could be helpful.

Best,
Steven