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.
Values of dosimetric parameters in the 3-beam IMPT-3D plan and 36-beam IMPT-DET plan from conventional PTV-based optimization for the BOS cancer case.
| Tissue | Dosimetric parameter | 3-beam IMPT | 36-beam IMPT-DET |
|---|---|---|---|
| CTV | D99% (Gy) | 65.4 | 65.8 |
| D1% (Gy) | 70.4 | 69.1 | |
| Brainstem | V20 (%) | 64.9 | 46.2 |
| V30 (%) | 46.5 | 32.3 | |
| V40 (%) | 31.7 | 22.0 | |
| V50 (%) | 18.3 | 13.6 | |
| V60 (%) | 7.3 | 7.2 | |
| Max (Gy) | 68.3 | 68.6 | |
| Dmean (Gy) | 30.2 | 23.7 | |
| Spinal cord | Dmax (Gy) | 32.0 | 34.5 |
| Dmean (Gy) | 1.2 | 0.95 |
