eigenvivek
DRR with implants
I have a CT scan, Say CT1. I set bone_attenuation_multiplier = 1.5 when reading the CT volume. Generated DRR and the subject volume plot (given by tio.Subject.plot()) are as follows:
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Next, I placed an implant mesh in the CT scan using 3D Slicer, filling it with an HU value of 3000. Then, I generated the DRR using the same process as above. The DRR and CT volume information is as follows.
I found that the intensity at the bone is different, and the DRR I was expecting was something like this:
Source of Picture: here
The part where an implant is present should be white, as it should almost completely block the X-ray beam. Upon reviewing the renderer's code, it appears that energy attenuation has not been implemented, as I do not see the initial energy term. How can I have a similar DRR as above for implants?
Additionally, I have noticed that density is normalized, so when I set HU=6000, I obtained the following DRR.
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My goal is to achieve the same intensity of bone on both DRRs (generated using CT with and without an implant). However, at the implant site, it should be white, similar to the one above, when generated using CT with an implant.
I've tried a few preprocessing steps, and it didn't work. Do you have any suggestions on how to achieve that? Additionally, incorporating these features into DiffDRR might be highly beneficial.
