How can I save whole DICOM file in ORTHANC?

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1

Hi, I’m new member in Orthanc Group
I’ve just setup Orthanc, and test how Orthanc works!
I find out Orthanc do not save DICOM file to .dcm extension when I push data form Modality. Why that?

How can I save .dcm file with Orthanc?

Thanks for your help? :slight_smile:

2

Hello,

What do you mean by “Orthanc do not save DICOM file to .dcm extension”?

Are you trying to read the content of the “OrthancStorage” directory? This should be avoided:
https://groups.google.com/forum/#!msg/orthanc-users/ZaIeQ31yr88/PgVkvjdFBAAJ

Downloading DICOM files from Orthanc can be done using its REST API or by downloading a ZIP file from the Web interface of Orthanc Explorer.

HTH,
Sébastien-

3

Hi Sébastien,

So I must install PostgreSQL plugin to save Dicom in one file .dcm? Is that right?

4

No, you can download it from Orthanc Explorer, even without the PostgreSQL plugin.

5

Hi Sébastien,

Compare with SonicDicom (an other Dicom Software)
When I push data from Modality, it saves Dicom file into one file (with .dcm extension)

But with Orthanc, it saves Dicom file into many directories.

I don’t understand much about this, have any reason for orthanc to save file that way?

6

You simply have to use the Web interface.

Sébastien-

7

Make also sure to read the tutorial:
http://www.orthanc-server.com/resources/2015-02-09-emsy-tutorial/index.html

8

Thanks Sébastien,

My problem is just want to know how Orthanc works.

With some app viewer (for Dicom), I just only point to Dicom directory to read dicom file.

With save way of Orthanc, I cannot use that softwares.

So I have to used Orthanc Explorer or some way like this. Anyway, it’s fine too

9

I read all tutorial on website,

I used Modality Emulator (dcmtk - Dicom Toolkit) to push Dicom file to Orthanc, I config StorageCompression=true, but it save file like on CDs.

So confused,

Did I miss anything?

10

OK, so I’ll give a more detailed answer. Orthanc is a vendor neutral archive (aka. a “DICOM server” or a “PACS server without a RIS and without a viewer”):
https://en.wikipedia.org/wiki/Vendor_Neutral_Archive

First of all, you should read the introduction to DICOM in the Orthanc Book:
https://orthanc.chu.ulg.ac.be/book/dicom-guide.html

The operation you want to do (i.e. fetch DICOM images from Orthanc into viewer) is referred to as “query/retrieve”. There is a FAQ entry about this topic in the Orthanc Book showing how to configure the Ginkgo CADx viewer against Orthanc:
https://orthanc.chu.ulg.ac.be/book/faq/query-retrieve.html#query-retrieve

There is also a video tutorial showing the same with the RadiAnt viewer:
https://www.youtube.com/watch?v=bsW4gYO4xrY

Any DICOM viewer supporting query/retrieve (including Horos/OsiriX) should be configurable in the same way:
https://orthanc.chu.ulg.ac.be/book/faq/viewers.html

For viewers that do not support query/retrieve (there are some of them around), you can download a ZIP file containing one study from Orthanc Explorer. I hope this clarifies things.

Sébastien-

11

Thanks Sébastien,

I have another question,

How can I setup Dicom Modality Worklist plugin on Windows? I can not find a pre-compile dll of this plugin. And I do not know how to build this plugin.

How can I read or write .wl file, or can I create other kind of file to save worklist. I didn’t find any tutorial about worklist. I don’t know how to update worklist from other system, e.g HIS

12

Precompiled snapshots of the worklist plugin are available for download on the Orthanc homepage:
http://www.orthanc-server.com/browse.php?path=/orthanc/snapshots

The usage instructions are available in the Orthanc distribution:
https://bitbucket.org/sjodogne/orthanc/src/default/Plugins/Samples/ModalityWorklists/

Sébastien-