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In case you were wondering DICOM (Digital Imaging and Communications in Medicine) is a set of standards in medical imaging. I have a CT result saved conforming to that standard and I want to be able to see the scans.

The directory structure looks like this:

123456 (folder)
|- 2342345 (file)
|- 2342346 (file)
|- 2342347 (file)
|- [...] (more files)

A Google search showed a lot of results for DICOM viewer and I even tried one but it only shows the thumbnails of the images. Could anyone recommend a good viewer so I don't have to try them all? Maybe with export functionality.

Thank you,

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Have you tried Irfanview or something like that? – Dennis Williamson Nov 24 '10 at 21:18
I tried Paint.NET and renaming to jpeg, png, gif and bmp. It didn't work. Those aren't normal images with different extensions. Also at this moment I found (at the 3rd try) an app that works decently, called MicroDicom, but I'm still waiting for answers. Maybe someone has more knowledge to share. – Alin Purcaru Nov 24 '10 at 21:20
up vote 1 down vote accepted

A good viewer is DICOMan ( but IrfanView shall also be sufficiant for your needs, since it is free. Did you install the plugins?

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the dicoman link yields a 404 – akira Nov 19 '11 at 21:26
added a link to DICOMan that worked as of 10 Sept 12. – Steve K Sep 10 '12 at 14:54

microdicom worked for me:

MicroDicom is application for primary processing and preservation of medical images in DICOM format It is equipped with most common tools for manipulation of DICOM images and it has an intuitive user interface. It also has the advantage of being free for use and accessible to everyone.

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The freely downloadable tool TomoVision will work as a DICOM viewer. No installation needed, it's just a single .exe.

It is normally meant as a viewer for about 50 non-DICOM, proprietary medical imaging formats, which can then be converted to DICOM with DICOMatic. However, it can also read DICOM as per its list of supported formats.

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If you want a GUI that looks like what physicians are used to, you may want to have a look at:

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