# sinogram reconstruction

**URL:** <https://castor-project.discourse.group/t/sinogram-reconstruction/257>\
**Category:** General Discussions\
**Created:** [March 9, 2022, 9:26pm UTC](https://castor-project.discourse.group/t/sinogram-reconstruction/257 "2022-03-09T21:26:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Hadi\_Rezaei](https://avatars.discourse-cdn.com/v4/letter/h/ebca7d/32.png) [@Hadi\_Rezaei](https://castor-project.discourse.group/u/Hadi_Rezaei)\
**Post date:** [March 9, 2022, 9:26pm UTC](https://castor-project.discourse.group/t/sinogram-reconstruction/257/1 "2022-03-09T21:26:35Z")

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Dear CASToR users and developers

I have a series of sinograms with nifti (or dicom) format. Can I reconstruct them using CASToR?  
Best regards.  
Hadi

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**Author:** ![tmerlin](https://yyz2.discourse-cdn.com/free1/user_avatar/castor-project.discourse.group/tmerlin/32/216_2.png) [@tmerlin](https://castor-project.discourse.group/u/tmerlin)\
**Post date:** [March 10, 2022, 2:12pm UTC](https://castor-project.discourse.group/t/sinogram-reconstruction/257/2 "2022-03-10T14:12:43Z")

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Dear Hadi,

CASToR uses its own histogram format as described in the section 6 of the documentation : [http://www.castor-project.org/sites/default/files/2020-09/CASToR\_general\_documentation.pdf](http://www.castor-project.org/sites/default/files/2020-09/CASToR_general_documentation.pdf) , so you would need to convert the sinograms into CASToR histogram format first.

There are some tools to convert data to CASToR format for several Siemens and GE systems here: [https://castor-project.org/converters](https://castor-project.org/converters) .Note that in most case they don’t directly convert sinogram in dicom format, but from uncompressed datafile formats which can be obtained using development softwares from Siemens and GE.

Hope this helps,  
Thibaut

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**Author:** ![Hadi\_Rezaei](https://avatars.discourse-cdn.com/v4/letter/h/ebca7d/32.png) [@Hadi\_Rezaei](https://castor-project.discourse.group/u/Hadi_Rezaei)\
**Post date:** [March 11, 2022, 7:44am UTC](https://castor-project.discourse.group/t/sinogram-reconstruction/257/3 "2022-03-11T07:44:18Z")

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Hello Tmerlin  
Many thanks for your answer.  
Best regards  
Hadi