[Mristudio-users] Questions regarding Transformation in Landmark

[Seongjin]

Hi HTH,

When I tried to read normalized tensor.d file, I need to load DTI data with
gradient table, but these are not generated from Landmark. As far as I get,
all of them are updated FA, ADC, tensor file etc.

When I start with data before normalization read and I can open the tensor
file. Otherwise there is no way to read tensor file. I wonder if I am doing
correctly. Do you know other way to read tensor file only?

Thanks in advance.

-SC

On Fri, May 1, 2009 at 7:08 PM, darshan pai <darshanp20 at yahoo.com> wrote:

> no you do not transform the vector file. you have the tensor right . You
> open the tensor in DTIStudio using the Open .d button, choose the tensor .
> It asks you for options regarding if you want to make eigen vectors FA , RA
> etc . Let it run, it will make all the files , just save what you need .
>
> HTH
>
> ------------------------------
> *From:* [Seongjin] <choisj70 at gmail.com>
> *To:* "DTI Studio, ROI Editor, Landmarker Questions/Support" <
> mristudio-users at mristudio.org>
> *Sent:* Friday, May 1, 2009 4:43:27 PM
> *Subject:* Re: [Mristudio-users] Questions regarding Transformation in
> Landmark
>
> Thanks for you reply.
>
> I guessed *.ani file will be the same. However, regarding *.vec file, I
> were warned not to transform vector file. I have no idea on this. Anyone who
> knows the answer?
>
> -SC
>
> On Fri, May 1, 2009 at 3:18 PM, darshan pai <darshanp20 at yahoo.com> wrote:
>
>> *.ani is the updated_FA file
>> and *.vec is the updated eigenvector0 file.
>> I think the format for both is *.dat .. just different extensions to
>> differentiate I guess ..
>>
>> ------------------------------
>> *From:* [Seongjin] <choisj70 at gmail.com>
>> *To:* "DTI Studio, ROI Editor, Landmarker Questions/Support" <
>> mristudio-users at mristudio.org>
>> *Sent:* Friday, May 1, 2009 12:01:05 PM
>> *Subject:* [Mristudio-users] Questions regarding Transformation in
>> Landmark
>>
>> I have data sets having reduced field of view compared to template in the
>> Landmarker.
>> I simply used linear AIR for space normalization.
>>
>> Translation and non-linear AIR seems not available for data of different
>> dimensions from the template.
>>
>>
>> Q1. I wonder what other restrictions in the space normalization or
>> transformation by using Landmarker.
>>
>> Q2. After transformation, I would like to do fiber tracking in DTI Studio.
>> What steps should I go through?
>>       I tried to use "Fiber Tracking" in DTI Studio main menu, however it
>> asked to load "*.ani" file and "*.vec" file.
>>       Those files were not generated at all from the normalization.
>>       I have updated FA, eigenvalue, tensor and AlignlinearOuptut.air.
>>
>> Thanks in advance.
>>
>> -SC
>>
>>
>>
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>>
>>
>
>
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