Orthanc and Toshiba Zexira

[Юрій Череднічок]

Good day to all!

Have issue with DICOM images sent from Toshiba Zexira to Orthanc: images are dark and without post information :(

Same time image sent to our main DICOM Server Doctor Eleks software is normal.

and with information like letter R.

Any ideas why?

[Sébastien Jodogne]

Hello,

If you expect support from the Orthanc community, please share a (possibly anonymized) sample DICOM file, and specify the viewer you are trying to use:

https://book.orthanc-server.com/users/support.html#discussing-a-minimal-working-example

Regards,

Sébastien-

[Юрій Череднічок]

Hi community, dicom files:

https://drive.google.com/drive/folders/1h-e3j_-YA-TeC4fxFbON8PIRPl3_FTef

At any viewer:

1. Zexira - DE - normal brightness

2. Zexira - Orthanc - dark brightness

середа, 23 листопада 2022 р. о 19:58:37 UTC+2 s.jo...@gmail.com пише:

[Sébastien Jodogne]

Hello,

After investigation, it appears that your file "sent_to_orthanc_dark_01.dcm" has a preset windowing of "WW/WC" (window width/center) that is incorrectly set to "76800 / 32512".

This absolutely doesn't reflect the dynamic range of your image, which leads to dark images in the Stone Web viewer. You should report this issue to your support contact from Toshiba, as there is visibly an incorrect setting on your modality.

Nonetheless, I have just added a new feature in the Stone Web viewer to stretch the windowing to the dynamic range of the image, as depicted in the attached screenshot. This feature can serve as a workaround to your issue.

The corresponding changeset is the following (it will be part of the next release of the Stone Web viewer):

https://hg.orthanc-server.com/orthanc-stone/rev/f36de3ba43c8

Regards,

Sébastien-

On Monday, November 28, 2022 at 3:41:15 PM UTC+1 juriy.che...@gmail.com wrote:

Hi community, dicom files:

https://drive.google.com/drive/folders/1h-e3j_-YA-TeC4fxFbON8PIRPl3_FTef

At any viewer:

1. Zexira - DE - normal brightness

2. Zexira - Orthanc - dark brightness

середа, 23 листопада 2022 р. о 19:58:37 UTC+2 s.jo...@gmail.com пише:

Hello,

If you expect support from the Orthanc community, please share a (possibly anonymized) sample DICOM file, and specify the viewer you are trying to use:

https://book.orthanc-server.com/users/support.html#discussing-a-minimal-working-example

Regards,

Sébastien-

On Monday, November 21, 2022 at 9:37:36 AM UTC+1 juriy.che...@gmail.com wrote:

Good day to all!

Have issue with DICOM images sent from Toshiba Zexira to Orthanc: images are dark and without post information :(