Syu-Jyun,
the accuracy of your result is always going to be determined by the
quality of your input data. If you have bad data, expect bad results.
However, you can of course try to improve on things by playing around
with the different options that are available in the unified or new
segmentation or in VBM8. Number of gaussians, inhomogeneity correction,
perhaps sampling distance and extended options (MRF, SANLM filtering)
come to mind.
Hope this helps,
Marko
Peng Syu-Jyun wrote:
> Dear exports
> I have a T1W sequence with bad contrast gray and white matter.
> How to segment to get correct gray anf white matter image?
> Best regards,
> Syu-Jyun
--
____________________________________________________
PD Dr. med. Marko Wilke
Facharzt für Kinder- und Jugendmedizin
Leiter, Experimentelle Pädiatrische Neurobildgebung
Universitäts-Kinderklinik
Abt. III (Neuropädiatrie)
Marko Wilke, MD, PhD
Pediatrician
Head, Experimental Pediatric Neuroimaging
University Children's Hospital
Dept. III (Pediatric Neurology)
Hoppe-Seyler-Str. 1
D - 72076 Tübingen, Germany
Tel. +49 7071 29-83416
Fax +49 7071 29-5473
[log in to unmask]
http://www.medizin.uni-tuebingen.de/kinder/epn/
____________________________________________________
|