The space in DSIstudio is fine but importing MRtrix will cause coordinate problems

[潘轶昂]

Hi Prof. Yeh,

The space in DSIstudio is fine but importing MRtrix will cause coordinate problems

Thanks!!

Regards,

Ang

[Frank Yeh]

Hi Ang,

    Sorry, this is a known issue due to a different origin. DSI Studio always uses the right-anterior-bottom corner as the origin, whereas in MRtrix it can be anywhere depending on the NIFTI header.

    One solution is to clear the transformation header in the NIFTI file so that the original is located at the right-anterior-bottom corner. Then they will align in MRtrix.

Best regards,

Frank

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[潘轶昂]

How should I clear the transformation header in the NIFTI file？

[Frank Yeh]

[Tools][View Image] open NIFTI [Header][Set Transformation] input 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1

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[潘轶昂]

   I followed your method to implement it, and the result is shown on the left. But when the save is done and then open the file again, the result is as shown on the right and his transforms are restored. 

  Can Prof. Yeh please point out my mistake or what I need to correct?

  Once again, thank you very much for your guidance and answers

[Frank Yeh]

The right one is correct because the voxel spacing is not (1,1,1).

On Thu, Jan 20, 2022 at 2:41 AM 潘轶昂 <pya942...@gmail.com> wrote:
>
>
> I followed your method to implement it, and the result is shown on the left. But when the save is done and then open the file again, the result is as shown on the right and his transforms are restored.
> Can Prof. Yeh please point out my mistake or what I need to correct?
> Once again, thank you very much for your guidance and answers
> 在2022年1月19日星期三 UTC+8 23:32:06<Frank Yeh> 写道：
>>
>> [Tools][View Image] open NIFTI [Header][Set Transformation] input 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1
>>
>> On Wed, Jan 19, 2022 at 9:45 AM 潘轶昂 <pya942...@gmail.com> wrote:
>>>
>>>
>>> How should I clear the transformation header in the NIFTI file？
>>>
>>> 在2022年1月17日星期一 UTC+8 04:30:54<Frank Yeh> 写道：
>>>>
>>>> Hi Ang,
>>>>
>>>> Sorry, this is a known issue due to a different origin. DSI Studio always uses the right-anterior-bottom corner as the origin, whereas in MRtrix it can be anywhere depending on the NIFTI header.
>>>>
>>>> One solution is to clear the transformation header in the NIFTI file so that the original is located at the right-anterior-bottom corner. Then they will align in MRtrix.
>>>>
>>>> Best regards,
>>>> Frank
>>>>
>>>> On Sun, Jan 16, 2022 at 9:57 AM 潘轶昂 <pya942...@gmail.com> wrote:
>>>>>
>>>>> Hi Prof. Yeh,
>>>>>
>>>>> The space in DSIstudio is fine but importing MRtrix will cause coordinate problems
>>>>>

>>>>> Thanks!!
>>>>> Regards,
>>>>> Ang
>>>>>
>>>>> --
>>>>> You received this message because you are subscribed to the Google Groups "DSI Studio" group.
>>>>> To unsubscribe from this group and stop receiving emails from it, send an email to dsi-studio+...@googlegroups.com.
>>>>> To view this discussion on the web visit https://groups.google.com/d/msgid/dsi-studio/75dcd434-4208-4601-a35f-919d981336ecn%40googlegroups.com.
>>>
>>> --
>>> You received this message because you are subscribed to the Google Groups "DSI Studio" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an email to dsi-studio+...@googlegroups.com.
>>>
>>> To view this discussion on the web visit https://groups.google.com/d/msgid/dsi-studio/cdacfeea-ce8b-4a2f-98de-abe8d506b47bn%40googlegroups.com.
>
> --
> You received this message because you are subscribed to the Google Groups "DSI Studio" group.
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> To view this discussion on the web visit https://groups.google.com/d/msgid/dsi-studio/7fbd0322-9ffe-4dfb-8bb1-81d1fd0a7e7cn%40googlegroups.com.