ADNIMERGE and IMAGEUID

[Neil]

Hi folks,

If you work on image-based models or analyses of AD, then you might be interested in downloading the structural MRI scans that correspond to the cross-sectional FreeSurfer volumes in ADNIMERGE.

I've done this by hacking the adnimerger.R function in the ADNIMERGE package so that IMAGEUID is included as a column in ucsfvol1, ucsfvol2, and ucsfvol.

Once that's done, and the package is installed, it takes two lines of R to generate a CSV for subsequent analyses:

dd <- adnimerger()
write.csv(dd, file = "ADNIMERGE_IMAGEUID.csv")

I think it's worthwhile adding this into the package proper so that the information is readily available. Mike D — what do you think?

As always, thanks to ADNI for this amazing dataset.

Cheers,

Neil

[Mike Donohue]

Sounds great, Neil. If you send me your "hack", I can add it to the package.

Mike

[Neil]

Hey Mike,

My hack in adnimerger.R was to change line 601:

  UCSFVOLs <- c('FLDSTRENG', 'FSVERSION',

becomes

  UCSFVOLs <- c('FLDSTRENG', 'FSVERSION', 'IMAGEUID',

File attached.

Cheers,

Neil