![Show Menu](styles/mobile-menu.png)
![Page Background](./../common/page-substrates/page0182.jpg)
Limitations of 3DCRT
▪
Hard to get acceptable plans for concave targets
▪
One needs a large number of beams to accomplish dose
coverage for complicated target volumes
▪
limited possible beam directions in regions with large number
of critical structures
▪
optimal beam angles often non- coplanar and can be difficult to
apply without collisions, and moreover:
difficult to find
Courtesy Marika Enmark