# Transfer accelerator plugin : origin of studies

**URL:** https://discourse.orthanc-server.org/t/transfer-accelerator-plugin-origin-of-studies/2191
**Category:** Google Groups archive
**Created:** [November 17, 2020, 3:08pm UTC](https://discourse.orthanc-server.org/t/transfer-accelerator-plugin-origin-of-studies/2191 "2020-11-17T15:08:10Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![cedric.co](https://discourse.orthanc-server.org/letter_avatar_proxy/v4/letter/c/ebca7d/32.png) [@cedric.co](https://discourse.orthanc-server.org/u/cedric.co)
#### Post date: [November 17, 2020, 3:08pm UTC](https://discourse.orthanc-server.org/t/transfer-accelerator-plugin-origin-of-studies/2191/1 "2020-11-17T15:08:10Z")

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Hi,

Is there a way to get dicom Aet or name from the original orthanc instance that ordered study transfer by accelerator plugin ?

Let’s imagine we have a central cloud orthanc hosted by AWS/Google/Azure… and a few others Orthanc in different facilities that forward all stable studies by transfer accelerator plugin to the central cloud Orthanc.  
Can I easily find by the REST API the name or the dicom AET of the original Orthanc instance where the study comes from ?

Best regards  
Thanks  
Cedric

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### Author: ![Alain\_Mazy3](https://discourse.orthanc-server.org/letter_avatar_proxy/v4/letter/a/eb9ed0/32.png) [@Alain\_Mazy3](https://discourse.orthanc-server.org/u/Alain_Mazy3)
#### Post date: [November 17, 2020, 5:16pm UTC](https://discourse.orthanc-server.org/t/transfer-accelerator-plugin-origin-of-studies/2191/2 "2020-11-17T17:16:20Z")

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Hi Cedric,

Only the DICOM data is transferred and therefore you won’t be able to get the AET of the sending Orthanc.

In your case, you could probably insert the AET in a DICOM tag when they are received on the on-premise orthancs. This can be done in python or lua by calling the /modify route on the NEW\_INSTANCE event or in the “OnStoredInstance” callback.

HTH

Alain