Usually you get hypointensities in T1w in older patients. Maybe it is some kind of scarring. Does this happen a lot or just this one subject?

On 2/12/2021 10:17 AM, Nils B. wrote:

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Hello and thank you for your answer. That would mean I'd need to manually manipulate the numbers from the files?

The data is from a 1.5T scanner and the participants are old, so right now my Theory is that it's a mix of the bad quality and age-related hyperintensities. But that's only a theory I can't prove which is why I wanted to reject the data but my supervisor wants me to include it.

Best regards,

Nils

Am Fr., 12. Feb. 2021 um 15:52 Uhr schrieb Douglas N. Greve <dgreve@mgh.harvard.edu>:
The only thing that you can really do is to edit to change the intensities in the brain.finalsurfs.mgz, but that is going to be hard. What causes the bright spots?

On 2/11/2021 1:53 PM, Nils B. wrote:

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Hello everyone,

I'm having problems with one of my participants' data (over 60 years old, subjective memory impairment). Due to White Spots in the Gray/White Matter the piles are shifted and I'm unsure how to change this. My outcome will be the Gray Matter thickness, which is why problems in the GM pials are problematic. I added a screenshot of the area (in the Green lines) where you can see several White Spots which cause the Pials to look weird. Is there a way that I could manually move the Gray matter pial to fit better or would you advise to not use this data set?

I'm thankful for any feedback.

Best regards,

Nils

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