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Table 1

From: Proton and carbon ion radiotherapy for primary brain tumors delivered with active raster scanning at the Heidelberg Ion Therapy Center (HIT): early treatment results and study concepts

patient characteristics
   [n] [%]
patient number 33 100
gender female 10 30.3
  male 23 69.7
age at RT   [years]
  median 42
  range 7-77
   [n] [%]
pediatric patients [≤ 18 years] 3 9.1
histology glioma 26 100
     WHO ° II 5 19.2
     WHO ° III 3 11.5
     WHO ° IV 18 69.2
  meningioma 7 100
     WHO ° I 3 43
     WHO ° II 3 43
     WHO ° III 1 14
radiotherapy mixed modality 22 66.6
     [12C] only 6 18.2
     [1H] only 5 15.2
particle reirradiation 7 21.2
   [ml]
mean particle volume [particle only, ml] 65.64
mean particle volume [particle boost, ml] 69.29
mean photon volume [particle boost, ml] 252.65
   [Gy]
range carbon total dose 18-45
range proton total dose 10-57.2
range photon total dose 50
   [mm]
Tumor diameter before RT 29.7
Tumor diameter at first follow-up 27.1
Tumor diameter at second follow-up 24.9
   [n] [%]
relapse meningioma 0 0
relapse glioma WHO ° II 0 0
relapse glioma WHO ° III/° III 9 42.3