Table 2. Dosimetric characteristics.

PTV V100 = planning target volume receiving 100% of prescribed dose

PTV V125 = planning target volume receiving 125% of prescribed dose

PTV V150 = planning target volume receiving 150% of prescribed dose

PTV D90 = dose to 90% of planning target volume

Urethra V100 = volume (in cc) of urethra receiving 100% of prescribed dose

Urethra V120 = volume (in cc) of urethra receiving 120% of prescribed dose

Urethra V125 = volume (in cc) of urethra receiving 125% of prescribed dose

Urethra V130 = volume (in cc) of urethra receiving 130% of prescribed dose

Rectum V80 = volume (in cc) of rectum receiving 80% of prescribed dose

Rectum V90 = volume (in cc) of rectum receiving 90% of prescribed dose

Rectum V100 = volume (in cc) of rectum receiving 100% of prescribed dose

Dosimetric Measure	Mean + SD	Median (IQR)
PTV V100 (%)	94.4 + 3.5	95.3 (91.9-96.7)
PTV V125	91.2 + 4.2	91.7 (87.9-93.9)
PTV V150	56.4 + 6.4	55.3 (52.0-61.0)
PTV D90 (Gy)	32.4 + 5.9	31.4 (29.1-34.8)
Urethra V100	1.2 + 0.5	1.03 (0.81-1.5)
Urethra V120	0.1 + 0.2	0.03 (0.01-0.16)
Urethra V125	0.1 + 0.1	0 (0-0.04)
Urethra V130	0.03 + 0.09	0 (0-0.01)
Rectum V80	0.72 + 0.69	0.4 (0.2-1.1)
Rectum V90	0.25 + 0.3	0.1 (0.01-0.4)
Rectum V100	0.08 + 0.11	0.03 (0-0.13)