What would be the correct method to store the studies?

General
1

I wanted to ask.
I have my local PACS, where I store all the studies sent by the teams, that is, uncompressed, usually in 1.2.840.10008.1.2.1 formats, and some in 1.2.840.10008.1.2.2.
My question is… should I leave them uncompressed locally and only use lossless compression in the cloud? For example, “1.2.840.10008.1.2.4.90”.
In my opinion, I wanted to use lossless compression locally with “IngestTranscoding”: “1.2.840.10008.1.2.4.90”, and also in the cloud, if any are uncompressed, I should also leave them in the same format, that is, 1.2.840.10008.1.2.4.90.
Is what I want to do correct? I’m asking because I don’t know how to manage this, and it would be fine.
That’s why I’d like to know what the correct approach is.
Also, because when uploading studies, if they’re not compressed, they’re much heavier and take much longer.
But again, I want to know what the correct approach is.
LOCAL at 1.2.840.10008.1.2.1 or 1.2.840.10008.1.2.2.
REMOTE at 1.2.840.10008.1.2.4.90,
Both at 1.2.840.10008.1.2.4.90.

Greetings, and I hope this is clear.

2

Hi,

It more depends on the viewer you are using.

If you are using OHIF: it is able to uncrompress JP2K (.90) in the browser → you should go for .90 everywhere.

If you are using StoneViewer: it is unable to uncompress JP2K in the browser which means that Orthanc needs to transcode before sending the images which may slow down the retrieval of images → you should go for .70 everywhere.

Hope this helps,

Alain

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