Advanced Physics for Brachytherapy 2018

Seed/Applicator Model Accuracy Requirements

• Patient CT grids (>1 mm voxel) are probably not adequate for accurate modeling on the spatial scale of brachytherapy sources and applicators.

• MBDCA vendors should use analytic modeling schemes or recursively specify meshes with 1–10 μ m spatial resolution.

• Vendors to disclose their geometry, material assignments, and manufacturing tolerances to both end users and TPS vendors (if responsible for data entry and maintenance)

TG-186 Section IV-B