Fig. 11.

A) Patient with two catheters inserted during regular 3D planning. For the 2D planning only one of them would be used (the one inserted into the bronchus with visible obturation). Comparison of GTV coverage by the 90% isodose achieved in 2D planning system. Legend: purple triangles – GTV volume, orange cylinder – 2D 90% isodose, blue – catheter. B) Patient with two catheters inserted. Comparison of GTV coverage by the 90% isodose achieved in 3D planning system. Legend: purple triangles – GTV volume, orange volume – 3D 90% isodose, blue – catheters [36]