RadiAnt DICOM Viewer - Discussion Forum
PET_CT fusion

I am trying to fuse my PET and CT scans but the button for doing this is not active. Any idea why? Also since the pixel size for the PET scans are 128x128 and that for CT are 512x512 is there a method implemented in the code to downsample the CT scans before fusing the two?

Jun 29, 2012 03:18 AM
by Ojwang
OK, I take my question back, it is pretty straight forward. What I would like to know is how to export the fused PET-CT scans in DICOM format.

Jun 29, 2012 03:32 AM
by Ojwang
Currently PET-CT fused images can only be exported to JPEG/BMP/WMV files.

Jun 30, 2012 12:13 PM
by RadiAnt
Straight forward? Could you please share your knowldge? I am trying the same thing too! :-)

Aug 6, 2012 07:18 PM
by Twonky
1. Open PET/CT study.
2. Split screen into two panels
3. Drag a CT series into the first and a corresponding PET series into the second panel.
4. Activate a panel with the CT series (by clicking it)
5. Click fusion button or use Ctrl + Alt + F keyboard shortcut

You can watch the entire process in one of our videos:
http://www.radiantviewer.com/videos.php (RadiAnt DICOM Viewer 1.0.4 - new features)

Aug 8, 2012 07:07 AM
by RadiAnt
OK, thanks! But: I have a PET/CT study, this is already fusioned on my patients-cd! I now have a MRT and want to fusion it with my PET! Is this possible with your software? If not can you name me a alternative free software?

Aug 9, 2012 11:28 AM
by Twonky
Only series from the same study can be fused, so in your case fusion is not possible in RadiAnt. I'm not aware of any free software for Windows PC that can perform such fusion...

Aug 9, 2012 12:29 PM
by RadiAnt
is there a way to change the color palette to the commonly used "hot iron" for pet/ct fusion? would be great!

Sep 5, 2012 12:58 PM
by jk

Currently it's not possible... However, we will probably add this feature in the next beta version :-)

Sep 5, 2012 02:45 PM
by RadiAnt
Yes, it would be great if you do this...

Oct 21, 2012 11:37 PM
by Daniel
You can try MIPAV and corregistration, but I don't know if it will work + it's not straightforward at all, MIPAV is not a DICOM viewer software, it is a processing / segmentation tool.

Oct 24, 2012 10:55 AM
by @Twonky

Please have a look at this:

Oct 26, 2012 05:48 PM
by RadiAnt
what's range of number in Color Scales chart in Fusion regarding to what subject ?
Thanks in advance.

Oct 4, 2015 04:40 AM
by Marco
The range of values on the color scale reflects the minimum and maximum values of the fused image (PET). If possible, these values are represented in SUV.

Oct 5, 2015 07:54 PM
by RadiAnt
Post reply

Author (first name or pseudonym):


You have to accept cookies to be able to post messages.
Visitors can post messages on the forum without having to register. Please input your first name or pseudonym in the "Author" field. Do not publish any personally identifiable information (PII).

Please ensure you write your posts in English so that our international audience can understand and reply to your message.

The Administrator reserves the right to remove any messages that violate our forum rules; for example, those that are not related to the RadiAnt DICOM Viewer software, published in a language other than English, contravene regulations, etc.