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Conclusion
•
Voxel-by voxel cross section assignment is a critical step
➢
Tissue segmentation; Applicator and source descripti
on
➢
Follow TG-186 guidelines to ensure centre-to-centre consistency
➢
Poke/Question your favorite TPS/Applicator vendor(s)…
•
For
192
Ir, water is a good representation of soft tissue only
➢
Air, bone, metals, … should be segmented and assigned the right
material/densitiy
•
Dual-Energy/Multi-Energy-CT should be explored actively
➢
Potential accurate solution to (ρ
e
,Z
eff
) assignments
➢
Hot research topics