[Freesurfer] white/gray surface and volumetric segmentation (aseg) difference...

2012-12-31 Thread Gonzalo Rojas Costa
Hi:

  With some mprage images, I got differences in the volumetric
segmentation (aseg) of the cortex and the white/gray surface... Why
?... I know that both methods are totally different... In the aseg I
got some bad segmentation of the cortex, but it in the white/gray
surface I got very better results...

  Sincerely,

-- 
Gonzalo Rojas Costa
Laboratory for Advanced Medical Image Processing
Department of Radiology
ClĂ­nica las Condes
Lo Fontecilla 441, Las Condes, Santiago, Chile.
Tel: 56-2-2105170
Cel: 56-9-97771785
www.clc.cl

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Re: [Freesurfer] white/gray surface and volumetric segmentation (aseg) difference...

2012-12-31 Thread Bruce Fischl
Hi Gonzalo

that's one of the reasons we use the surfaces for cortical morphometry, 
not the aseg.

cheers
Bruce
On Mon, 31 Dec 2012, Gonzalo Rojas Costa wrote:

 Hi:

  With some mprage images, I got differences in the volumetric
 segmentation (aseg) of the cortex and the white/gray surface... Why
 ?... I know that both methods are totally different... In the aseg I
 got some bad segmentation of the cortex, but it in the white/gray
 surface I got very better results...

  Sincerely,


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The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.