[Mristudio-users] How to do a Tailarach transformation?

[Zhipeng Hou]

It will takes more than 24 hours if more people submit together.

So please wait one more day.

On Wed, Apr 1, 2009 at 7:48 AM, susumu <susumu at mri.jhu.edu> wrote:

> Once you get the confirmation email, you should receive the results.
> It usually takes about 2-6 hours depending on the length of the queue.
>
> If you don't receive the results within 24 hours, please let us know, by
> sending an email to xli at jhmi.edu with the identifier number.
>
> We will have substantial increase in our computational resource this year.
> I
> hope this will open up the throughput a lot.
>
> -----Original Message-----
> From: mristudio-users-bounces at mristudio.org
> [mailto:mristudio-users-bounces at mristudio.org] On Behalf Of Christian
> Bieck
> Sent: Wednesday, April 01, 2009 6:08 AM
> To: mristudio-users at mristudio.org
> Subject: Re: [Mristudio-users] How to do a Tailarach transformation?
>
> Hello,
>
> I made an attempt at 2) and did a rigid AIR transformation, followed by an
> LDDMM. As the grey scale images have to be in byte format, I transformed
> both the JHU_MNI_GA_DWI sample image and one of my test subject's DWI file
> to byte format via the BFW button.
> I then went on to do an automated single channel LDDMM, not changing the
> default parameters, and after a while Landmarker said that the files had
> been sent.
> Now while I typed in my registered email address, I didn't get a
> confirmation nor a Process Complete email, so I'm wondering how long such a
> remote LDDMM processing normally takes or if I made some mistake during the
> whole process.
> Are there any vital details during LDDMM that I may have overlooked?
> Any input would be greatly appreciated. Thanks for your time.
>
> Sincerely,
> Christian Bieck
>
> >
> > Hi Christian,
> >
> > Sorry that the manuals for Landmarker and RoiEditor are still quite
> behind.
> > This year, we will most likely provide 2-day tutorial in Hawaii ISMRM
> (Sat
> > and Sun). Announcement will be sent next week. Join one of these
> tutorials
> > is the best way at this point. We are working on manuals and hopefully
> can
> > provide "Getting Started" soon.
> >
> > As for your question, there are several points I want to make;
> > 1) There are three ways to do normalization: manual landmark-based
> (rigid,
> > affine, and LDDMM), automated linear & low-order non-linear (AIR), and
> > automated high-order non-linear (LDDMM).
> > 2) Usually, automated AIR (rigid or affine) + automated LDDMM is the
> easiest
> > way.
> > 3) Talairach brain is VERY different from normal subjects. To accurately
> > transform your data to Talairach, AIR is not enough. You need extensive
> > landmarking or AIR+LDDMM.
> > 4) Manual landmark-based normalization has a great flexibility but it's
> time
> > consuming and require some experience.
> >
> > I recommend you to start with #2. If you don't come to ISMRM, please wait
> > for the Getting Started or you are welcome to visit my lab.
> >
> > Susumu
>
>
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