Measurements on DICOM Image

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Measurements on DICOM Image

jamier
I have taken some x-rays on a test object we use for quality control tests and would like to measure distances between points and compare them to known distances. The images I have are in DICOM format. The measurements I have made using ImageJ are in pixel length as opposed to mm. I have checked the image information and width and height parameters are indeed in pixels.

However, when I use an alternative DICOM viewer (microDICOM) I get access to distances in mm. I have checked other similar DICOM images with ImageJ and can access distances in mm. There seems to be an issue only with this batch of images. Can anyone give me some guidance.
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Re: Measurements on DICOM Image

ctrueden
Hi Jamier,

I have taken some x-rays on a test object we use for quality control tests
> and would like to measure distances between points and compare them to known
> distances. The images I have are in DICOM format.
>

How are you opening the DICOM files within ImageJ? Did you try the Tudor
DICOM Tools plugin? Did you try the Bio-Formats Importer? Both of these
support DICOM and may be more likely to parse the micron lengths.

If none of these options read the micron lengths properly, let us know. If
you are willing to send a sample dataset, we can fix the problem.

Thanks,
Curtis


On Thu, Oct 20, 2011 at 8:27 AM, jamier <[hidden email]>wrote:

> I have taken some x-rays on a test object we use for quality control tests
> and would like to measure distances between points and compare them to
> known
> distances. The images I have are in DICOM format. The measurements I have
> made using ImageJ are in pixel length as opposed to mm. I have checked the
> image information and width and height parameters are indeed in pixels.
>
> However, when I use an alternative DICOM viewer (microDICOM) I get access
> to
> distances in mm. I have checked other similar DICOM images with ImageJ and
> can access distances in mm. There seems to be an issue only with this batch
> of images. Can anyone give me some guidance.
>
> --
> View this message in context:
> http://imagej.588099.n2.nabble.com/Measurements-on-DICOM-Image-tp6912874p6912874.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>