Sorry, I forgot to give the websit address. It is:
http://staff.washington.edu/qguan
the file name is
ellison.baseline.0.hdr
ellison.followup.12.hdr
When I run siena ellison.baseline.0 ellison.followup.12
It crashed, and gave the error massage:
Can't open ellison.baseline.0_halfwayto_ellison.followup.12_brain_seg.hdr
Can't open ellison.baseline.0_to_ellison.followup.12_flow.hdr
Can't open ellison.baseline.0_to_ellison.followup.12_flow.hdr
Thanks.
>From: Qingyan Guan <[log in to unmask]>
>Reply-To: FSL - FMRIB's Software Library <[log in to unmask]>
>To: [log in to unmask]
>Subject: Re: [FSL] Volume measurement
>Date: Thu, 14 Feb 2002 10:54:50 -0800
>
>Hi,
>
>I have a question about brain volume.
>I used FAST and sienax for brain volume calculation. Both are supposed to
>have function for brain volume calculation.
>
>Here is my question.
>(1) First, when I use FAST with default option, get grey matter and white
>matter. My consider is that add grey and white matter volume together to
>get
>the whole brain volume. But it is almost 1400ml, seems too much than a
>normal brain volume. So I think I must missed something. Did I?
>(2) and then I run FAST with -c -2 option, it gives 1 tissue volume
>including grey matter and white matter. the volume value still too big, and
>also has different with the value I got at (1).
>(3) I tried sienax, it gets Normalised brain volume like 1553403mm*mm*mm.
>
>Which one should I use? Thanks a lots for any suggestion.
>
>I also had problem with runing siena. I have run siena at other data set,
>it
>works very good, but only on this study, it crashed all the time. I
>couldn't
>see there is any different between this data set and other one. I have put
>this data set on the website below, if you would like to take a look at it.
>Thanks again.
>
>Qingyan Guan
>
>
>>From: Stephen Smith <[log in to unmask]>
>>Reply-To: FSL - FMRIB's Software Library <[log in to unmask]>
>>To: [log in to unmask]
>>Subject: Re: [FSL] Volume measurement
>>Date: Wed, 30 Jan 2002 11:38:08 +0000
>>
>>Hi.
>>
>>Typical text output from FAST with partial volume estimation turned on:
>>
>>Class: CSF tissue 1 tissue 2 brain percentage
>>Volumes: 279856.9 713568.4 663759.8 0.831125
>>
>>so if you want the total grey volume (eg tissue 1) then the value 713568.4
>>is exactly this, taking into account partial volume effect and everything.
>
>
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