Hi - we have a need to import jpeg images and convert to DICOM secondary capture *with pixel scaling* information included. We can do this manually in something like GIMP but it is painful.
Is it possible at all in Kpacs?
add pixel scaling to imported jpg/bmp?
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Dear skthom
No, such a function is not available in K-PACS. Usually, you won't know what kind of pixel spacing you have with non-DICOM images that you import. The only option is to calibrate such images later in the viewer. This is possible in iQ-VIEW (not K-PACS). If you have a marker of known size on such an image, you can use this marker to calibrate this image and iQ-VIEW will calculate all distance measurements based on this calibration. With the PRO version of iQ-VIEW you would even be able to store these changes as a presentation state object (PR).
Feel free to try out iQ-VIEW, our diagnostic workstation, which comes with a lot more features and also medical device certification, such as CE and FDA 510(k) among others.
I hope this helps.
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"Usually, you won't know what kind of pixel spacing you have with non-DICOM images that you import."
Yes mostly that is true, however there are indeed use cases where you DO know the pixel scaling (because a graticule is included in the image). Saving it as part of presentation state is useless for my use case since I need the resulting image in a radiation therapy treatment planning system that does not support it.
However, thanks for your quick and timely response!
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Then you may want to check if your radiotherapy planning system provides some form of image calibration. Many viewers allow for such oversize scaling.
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