Compare two dicom image before and after injection

Hello, i have two dicom image(before and after contrast agent) i just want to contour the contrast agent by comparing this two images. how to do that?

yours,
zahed

It seems that this message fell through the cracks (probably because it was originally posted in the “Community” category instead of “Support”). If you still need help with this then let us know.

I’m looking for an option to compare before and after DICOM images of maxillae following bone augmentation and came across this forum.
I’d appreciate your assistance.
Thanxk,
Jacob