From: Does Intensity Modulated Radiation Therapy (IMRT) prevent additional toxicity of treating the pelvic lymph nodes compared to treatment of the prostate only?
NTCP for late rectal toxicity (%)
Rectal volume (RV)
Rectal wall (RW)
Plan-PO
5.7% ± 1.8%
7.5% ± 2.2%
Plan-WP 46 Gy
5.8% ± 1.3%
7.6% ± 1.5%
Plan-WP 50.4 Gy
5.9% ± 1.1%
7.8% ± 1.1%
Plan-WP 54 Gy
6.1% ± 1.2%
8.1% ± 1.1%