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Using Dicom Graphic Annotation Module

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Subject: Using Dicom Graphic Annotation Module
From: java58developer@gmail.com (Артем Косенко)
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by: Артем Косе� - Mon, 26 Jun 2023 08:20 UTC

I'm adding graphical annotations to the dicom file to display an ellipse, but I can't see it when viewing the file with RadiAnt or any other viewer. What could be the reason?
Here is a set of tags and their values that are inside my Dicom file:
GraphicAnnotationUnits (0070|0001): Pixel
NumberOfGraphicPoints(0070|0021): 4
GraphicData (0070|0022): 160/160/240/160/160/250/240/250
GraphicType: ELLIPSE
I also tried to store these tags inside the GraphicAnnotationSequence and GraphicObjectSequence, but that didn't work either.

Re: Using Dicom Graphic Annotation Module

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Subject: Using Dicom Graphic Annotation Module
From: mathieu.malaterre@gmail.com (Mathieu Malaterre)
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by: Mathieu Malaterre - Mon, 26 Jun 2023 09:57 UTC

On Monday, June 26, 2023 at 10:20:34 AM UTC+2, Артем Косенко wrote:
> I'm adding graphical annotations to the dicom file to display an ellipse, but I can't see it when viewing the file with RadiAnt or any other viewer. What could be the reason?
> Here is a set of tags and their values that are inside my Dicom file:
> GraphicAnnotationUnits (0070|0001): Pixel
> NumberOfGraphicPoints(0070|0021): 4
> GraphicData (0070|0022): 160/160/240/160/160/250/240/250
> GraphicType: ELLIPSE
> I also tried to store these tags inside the GraphicAnnotationSequence and GraphicObjectSequence, but that didn't work either.

You could try one of the sample from weasis collection to check your particular viewer implementation:

* https://weasis.org/en/demo/index.html#dicom-presentation-state-pr-gsps

Re: Using Dicom Graphic Annotation Module

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Subject: Using Dicom Graphic Annotation Module
From: dclunie@dclunie.com (David Clunie)
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by: David Clunie - Sat, 1 Jul 2023 02:14 UTC

You can't just add random attributes that are not in the IOD and expect viewers to pay any attention to them.

Annotations using the attributes you describe need to be in Presentation State instances separate from the images, and then you need a viewer that supports presentation states.

Or use a Structured Report, particularly if your ellipse "means something".

On Monday, June 26, 2023 at 4:20:34 AM UTC-4, Артем Косенко wrote:
> I'm adding graphical annotations to the dicom file to display an ellipse, but I can't see it when viewing the file with RadiAnt or any other viewer. What could be the reason?
> Here is a set of tags and their values that are inside my Dicom file:
> GraphicAnnotationUnits (0070|0001): Pixel
> NumberOfGraphicPoints(0070|0021): 4
> GraphicData (0070|0022): 160/160/240/160/160/250/240/250
> GraphicType: ELLIPSE
> I also tried to store these tags inside the GraphicAnnotationSequence and GraphicObjectSequence, but that didn't work either.

Subject	Author
Using Dicom Graphic Annotation Module	Артем Косенко
Re: Using Dicom Graphic Annotation Module	Mathieu Malaterre
Re: Using Dicom Graphic Annotation Module	David Clunie