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devel / comp.protocols.dicom / Store measurements in dicom file

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* Store measurements in dicom fileprzemekkr...@gmail.com
`* Re: Store measurements in dicom fileDavid Clunie
 +- Re: Store measurements in dicom fileKevin Archie
 `- Re: Store measurements in dicom fileprzemekkr...@gmail.com

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Store measurements in dicom file

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Subject: Store measurements in dicom file
From: przemekkrysztofiak@gmail.com (przemekkr...@gmail.com)
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 by: przemekkr...@gmail.c - Tue, 12 Oct 2021 13:00 UTC

I need to store some standard measurements (e.g. line, angle, cobb angle, etc.) in dicom file. My plan is to use the Presentation State but would be grateful for any advice on how to do this being standard compliant.

Re: Store measurements in dicom file

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Subject: Re: Store measurements in dicom file
From: dclunie@dclunie.com (David Clunie)
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 by: David Clunie - Tue, 12 Oct 2021 15:48 UTC

Presentation states are renderable on many PACS, but sacrifice the "semantics" of what you are storing.

I.e., it may look like a Cobb angle to a human, but to a machine its just a bunch of meaningless squiggles +/- disassociated strings.

Better is to use a DICOM Structured Report.

For guidance on encoding planar annotations in DICOM SR (including examples of Cobb angles) see:

http://dx.doi.org/10.13140/RG.2.2.34520.62725

Re: Store measurements in dicom file

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Subject: Re: Store measurements in dicom file
From: karchie@maritim.us (Kevin Archie)
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 by: Kevin Archie - Wed, 13 Oct 2021 12:51 UTC

On Tuesday, October 12, 2021 at 9:48:36 AM UTC-6, dcl...@dclunie.com wrote:
> Presentation states are renderable on many PACS, but sacrifice the "semantics" of what you are storing.
> ...
> Better is to use a DICOM Structured Report.
> For guidance on encoding planar annotations in DICOM SR (including examples of Cobb angles) see:
> http://dx.doi.org/10.13140/RG.2.2.34520.62725

I agree that SR is the right way to go in the long run, and even today when the use case is something quantitative (e.g., ML); but for now, if the intent is for humans to see the measurements, it's probably a good idea to also build a PS representation, which will display on top of the image on many viewers (I know Weasis and the Ambra viewer, but not Horos/OsiriX).

Unless maybe there's broader support for a visual interpretation of SR-encoded measurements than I'm aware? Would love to be wrong here.

- Kevin

Re: Store measurements in dicom file

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Subject: Re: Store measurements in dicom file
From: przemekkrysztofiak@gmail.com (przemekkr...@gmail.com)
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 by: przemekkr...@gmail.c - Fri, 15 Oct 2021 04:52 UTC

wtorek, 12 października 2021 o 17:48:36 UTC+2 dcl...@dclunie.com napisał(a):
> Presentation states are renderable on many PACS, but sacrifice the "semantics" of what you are storing.
>
> I.e., it may look like a Cobb angle to a human, but to a machine its just a bunch of meaningless squiggles +/- disassociated strings.
>
> Better is to use a DICOM Structured Report.
>
> For guidance on encoding planar annotations in DICOM SR (including examples of Cobb angles) see:
>
> http://dx.doi.org/10.13140/RG.2.2.34520.62725
First of all, I would like to thank you for the link to the white paper. Also, I would like to ask if there is any SR in the IDC database that I could follow? Or maybe any other source?

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