| Vert. (cm) | Lng. (cm) | Lat. (cm) | Note | |
|---|---|---|---|---|
| A. Initial couch position | ||||
| B. discrepancies | ||||
| C. Shifted position | ||||
| (1) = A – C: expected shift | ||||
| D. Shifts from matching | ||||
| (2) = D – (1): matching accuracy | ||||
| E. New couch position | ||||
| F. Final couch position | ||||
| (3) = D – F: couch motion accuracy | ||||
| Tolerance for B, (2) and (3): | ||||
| for non‐SRS/SBRT | ||||
| for SRS/SBRT |
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.