Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Beam angle distribution in standard STD, extended STD, and undeliverable categories for treatments to the head, lung, abdomen, and prostate.
| Undeliverable beams | Deliverable with standard STD | Deliverable with extended STD | |
|---|---|---|---|
| Head | 199 | 786 | 177 |
| Lung | 207 | 452 | 503 |
| Abdomen | 219 | 471 | 472 |
| Prostate | 320 | 435 | 407 |
