Yeh, same question. I am interested in having a copy of the code as well.
But better still if it has a version of matlab script or c code etc. since
we don't have IDL.
Wei Wen
Sydney, Australia
----- Original Message -----
From: "Darren Weber" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 13, 2002 10:23 PM
Subject: Re: SPM99 quality of segmentation and coregistration
> Dear Rob,
>
> Are you able to make the IDL script available?
>
> Kind regards, Darren
>
>
>
> ----- Original Message -----
> From: "McClure, Robert (NIMH)" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, March 12, 2002 3:15 AM
> Subject: Re: SPM99 quality of segmentation and coregistration
>
>
> > Badreddine:
> >
> > Strangely, I know of no papers that assess the quality of SPM99
> segmentation
> > to other segmentation methods. In fact I know of no papers comparing the
> > segmentation of MRI data to actual grey and white matter tissue in the
> > brain.
> > This always struck me as strange, considering how much is written about
> > loss of grey matter tissue in schiophrenia.
> >
> > Most MRI segmentation algorithms assign voxels to a tissue class based
on
> > location or intensity. SPM99 uses location and intensity to assign each
> > voxel
> > a probability of being in a tissue class between 0 and 1. The output
is
> a
> >
> > probability map for grey, white and csf. A fellow in our group wrote
code
> > in
> > IDL that assigns each voxel in the map to a certain tissue class based
on
> > those probablity maps. He modelled this based on a program written by
> > another group (see Wilke et al, Neuroimage, 13, 814-824)
> >
> > Another "off the shelf" MRI segmentation program is in FSL.
> > (see http://www.fmrib.ox.ac.uk/fsl/index.html).
> >
> > I would defer any comments on the "quality" of coregistration in SPM99
the
> > experts.
> >
> > Rob McClure
> >
> > -----Original Message-----
> > From: Badreddine Bencherif [mailto:[log in to unmask]]
> > Sent: Monday, March 11, 2002 9:23 AM
> > To: [log in to unmask]
> > Subject: SPM99 quality of segmentation and coregistration
> >
> >
> > Doea anyone knows about papers published where authors assessed in SPM99
> > the quality of:
> > 1) brain MR segmentation
> > 2) coregistration
> > What is the gold standard ? Is it visual comparison of data ?
> >
> > Thanks for your help
> >
> > --
> > Badreddine Bencherif,MD
> > Department of Radiology
> > Division of Nuclear Medicine
> > Johns Hopkins University School of Medicine
> > 601 North Caroline Street / JHOC 4230
> > Baltimore, MD 21287-0855 USA
> > Voice: (410) 614-2787 Pager: (410) 283-2050
> > Fax: (410) 614-1977
> >
***********************************************************************************
This email and the files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient, you are not permitted to distribute or use this message or any of its attachments in any way. We also request that you advise the sender of the incorrect addressing.
This note also confirms that this email message has been virus scanned and although no computer viruses were detected, South East Health accepts no liability for any consequential damage resulting from email containing any computer viruses.
***********************************************************************************
|