Table 2.
Dosimetric Quantifiers for 40 Patients, Stratified by Source Type
| Variable | LS (n = 20) | SES (n = 20) | P* |
|---|---|---|---|
| V100 | 86.5 (3.7) | 94.1 (2.9) | <.0001 |
| V90 | 90.4 (3.2) | 96.6 (2.2) | <.0001 |
| V80 | 94.1 (2.6) | 98.5 (1.3) | <.0001 |
| D90 | 132 (11) Gy | 164 (17) Gy | <.0001 |
| No. (%) with D90 >140 Gy | 7/20 (35%) | 20/20 (100%) | <.0001 |
Data are presented as mean (standard deviation), unless otherwise specified LS, loose sources; SES, sources embedded in suture; V100, V90, V80, volumes of the prostate receiving 100%, 90%, and 80%, respectively, of the prescription dose; D90, radiation dose delivered to 90% of the prostate.
Data from Lee et al.33.
*
Two-sided, LS vs SES.