# MRS DICOM support (Siemens)

**URL:** https://discourse.orthanc-server.org/t/mrs-dicom-support-siemens/2216
**Category:** Google Groups archive
**Created:** [December 7, 2020, 10:58am UTC](https://discourse.orthanc-server.org/t/mrs-dicom-support-siemens/2216 "2020-12-07T10:58:48Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Bartosz\_Kossowski](https://discourse.orthanc-server.org/letter_avatar_proxy/v4/letter/b/c5a1d2/32.png) [@Bartosz\_Kossowski](https://discourse.orthanc-server.org/u/Bartosz_Kossowski)
#### Post date: [December 7, 2020, 10:58am UTC](https://discourse.orthanc-server.org/t/mrs-dicom-support-siemens/2216/1 "2020-12-07T10:58:48Z")

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Hi,

I’ve just noticed that MRS Dicoms (spectrscopy) from our Siemens scanner are not storing on the Orthanc server. However, I have bunch of them from my previous studies already there and I can access them easily.

Please let me know if smth has changed in the Orthanc default settings and how to make it work with my current set-up.

Orthanc version: 1.8.0 (dockerized + postgresql)  
No logged errors  
I attach an exemplary DICOM file

Bartosz Kossowski

[svs\_siemens.IMA](https://discourse.orthanc-server.org/uploads/short-url/6SH92GS6Pl8M7XxZ6VMtaeiPSqU.IMA) (66.8 KB)

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### Author: ![jodogne](https://discourse.orthanc-server.org/user_avatar/discourse.orthanc-server.org/jodogne/32/1511_2.png) [@jodogne](https://discourse.orthanc-server.org/u/jodogne)
#### Post date: [December 8, 2020, 2:52pm UTC](https://discourse.orthanc-server.org/t/mrs-dicom-support-siemens/2216/2 "2020-12-08T14:52:52Z")

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Hello,

The SOP class UID associated with your DICOM file is non-standard and proprietary from Siemens (1.3.12.2.1107.5.9.1), and is thus unknown to Orthanc.

You must start Orthanc with the configuration option “UnknownSopClassAccepted” set to “true”:  
[https://book.orthanc-server.com/users/configuration.html](https://book.orthanc-server.com/users/configuration.html)

The FAQ entry “Sending uncommon or recent SOP class UIDs” is also of interest to you:  
[https://book.orthanc-server.com/faq/dcmtk-tricks.html](https://book.orthanc-server.com/faq/dcmtk-tricks.html)

For further reference, in your case, the “storescu” command-line tool can be configured by adding the following line to the “/tmp/storescu.cfg” configuration:

PresentationContext128 = 1.3.12.2.1107.5.9.1\Uncompressed

Sébastien-