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RadiAnt DICOM Viewer - Discussion Forum
Subtraction

Jan 16, 2013 01:17 PM
by Hu
Hi,
I have tried several kinds of workstation, unfortunately, there is no one could do subtraction of DSA files. Can your workstation do it?
Kind regards
Jan 17, 2013 10:38 AM
by RadiAnt
Hi,

Currently there is no subtraction feature in RadiAnt. However, I am sure that in the future we will add the DSA functionality.

Greetings,
Maciej
May 26, 2013 10:12 AM
by Tommy
I find subtraction useful in MR studies as well...
sometimes I need to subtract pre-contrast and post-contrast images in cases of T1 hyperintense lesions. Only subtraction really tells you if it takes gadolinium or not.
May 29, 2013 07:51 AM
by RadiAnt
DSA and MR subtraction are slightly different in implementation, yet both deserve to be featured in RadiAnt.
Sep 29, 2013 02:28 PM
by Tommy
probably MR subtraction will be easier to implement than DSA subtraction.

do you think that the fusion feature could in some way modified to obtain a subtraction feature or this must be created by scratch.
Sep 30, 2013 09:26 PM
by RadiAnt
Tommy, both MR and DSA subtraction modes are not very hard to implement (they do require some time, though). The fusion feature implementation is quite different, so the subtraction has to be created almost from scratch.
Jan 12, 2016 07:17 PM
by Bobby
Hi, Does RadiAnt offer MR subtraction yet? Thank you.
Jan 14, 2016 06:08 PM
by RadiAnt
Hi,

No, there's no subtraction available yet in RadiAnt.

Kind regards,
Maciej
Apr 10, 2016 06:52 PM
by Perdix
Is DSA still in development? I am retired now but I used it extensively in congenital heart disease to the extent that I used to turn off the automatic dose control in order to optimize it. It is still very useful if the AGC is on and even if respiration is not suspended.
Apr 10, 2016 08:17 PM
by RadiAnt
Perdix,

Yes, there are still plans to develop the DSA feature. There is no time frame set, however. Surely not before 2017.

Greetings,
Maciej
Mar 4, 2017 11:31 PM
by yudhi
How to perform DSA substraction in Radiant ??
Mar 5, 2017 02:05 AM
by Yao
Ups, No Substraction feature, When RadiANT add this ability?? I hope soon.
Mar 6, 2017 03:50 PM
by RadiAnt
No specific time frame for this feature yet...
Apr 22, 2017 02:43 PM
by miles
please, please , please can you add mri subtraction?
Apr 25, 2017 08:49 PM
by RadiAnt
Sorry, still no time frame for this feature...
Dec 22, 2018 07:10 PM
by Rikard
Hello,

I would like to again add to the conversation that this feature (XA subtraction mostly for me) woulde be a real killer feature for Radiant. It's the only thing stopping me from giving up Osirix/Horos for Radiant. Please add!
Jan 10, 2019 09:32 PM
by RadiAnt
Still no time frame for this feature. We would like to see it happen this year, anyway...
Apr 23, 2020 08:02 AM
by Tommy
WOW!!! we got DSA... now it's the turn of subtraction... it would be very useful in MRI studies when you deal with lesions with high T1 signal in the precontrast scan...

only subtraction will allow you to see if there's enhancement or not after gadolinium administration.
Apr 24, 2020 09:12 AM
by RadiAnt
Tommy, we also plan to implement subtraction for MRI (or CT) studies. Probably not in this beta cycle, though.
Apr 26, 2020 05:35 AM
by Tommy
take your time...

you know that users like me are always ask for more ;-)

just after 5 minutes using the last new feature we are already asking for the next one :D

by the way, even if I don't do interventional radiology, I think that this DSA feature was very important to implement.

RadiAnt was already capable of reviewing DX, CT, MRI and PET...
DSA was the only missing modality so now it's a really complete radiology suite.

many softwares I know are not even capable of viewing PET-CT fusion and DSA so this puts RadiAnt even higher towards the top of the mountain.

well done, as usual.
Apr 29, 2020 01:31 PM
by RadiAnt
Thanks!
Mar 30, 2021 11:29 PM
by Guilherme
Hello. Any updates on a possible implementation of mri subtraction?
Thanks in advance
Apr 1, 2021 05:28 PM
by RadiAnt
Sorry, no updates at this time.
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