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. 2014 Feb;5(1):3–8. doi: 10.3978/j.issn.2078-6891.2013.041

Table 2. Median small bowel and bladder normal-tissue exposures for each planning technique.

Small bowel V10Gy (cm3) Small bowel V20Gy (cm3) Small bowel V30Gy (cm3) Small bowel V40Gy (cm3) Bladder V40Gy (%) Bladder V50Gy (%)
3DCRT 91 55 35 27 41 19
IMRT 90 56 29 19 29 12
PT 45 39 32 22 31 13
PT vs. 3DCRT P=0.0156 P=0.0156 P=0.0156 P=0.0156 P=0.016 P=NS
PT vs. IMRT P=0.0156 P=0.0156 P=NS P=NS P=NS P=NS

Abbreviations: 3DCRT, 3-dimensional conformal radiation therapy; IMRT, intensity-modulated radiation therapy; NS, not significant; PT, proton therapy.