From: X-change symposium: status and future of modern radiation oncology—from technology to biology
Proton beam therapy | Brachytherapy |
---|---|
External beam radiotherapy | Internal irradiation |
Very small to large size PTVs | Very small to intermediate size PTVs |
Commonly homogeneous dose distribution | Heterogeneous dose distribution |
Almost all locations can be treated | Limited in locations to treat |
Beam specific margins to account for dose distribution uncertainties | Limited or no PTV margins |