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Table 2 Dose to the organs at risk (OAR) in IMRT treatment plans (57.6 Gy total dose)

From: Influence of 68Ga-DOTATOC on sparing of normal tissue for radiation therapy of skull base meningioma: differential impact of photon and proton radiotherapy

Parameter CT-MRI
(Gy, median, range)
CT-MRI-PET
(Gy, median, range)
p-value
Brain Stem
 Dmax 55.1 (47.0–58.1) 54.7 (43.2–58.72 0.013*
 Dmedian 13.4 (3.0–21.3) 10.33 (2.8–22.4 0.241
Optic Chiasm
 Dmax 53.1(7.3–57.9) 51.8 (4.2–57.5) 0.032*
 Dmedian 42.6 (3.36–51.0) 41.0 (2.8–53.5) 0.007*
Left optic nerve
 Dmax 54.5 (5.9–58.7) 53.6 (2.3–58.6) 0.036*
 Dmedian 42.4 (2.2–55.6) 35.3 (1.5–55.7) 0.017*
Right optic nerve
 Dmax 52.1 (1.8–56.7) 51.2 (1.6–57.3) 0.037*
 Dmedian 33.7 (0.9–54.5) 28.1 (0.9–54.2) 0.013*
  1. *Significant difference <0.05