Patient No. Location Tumor max length (mm) volume (mm3) Dosimetry nbisocenters BCB margin dose (Gy) isodose % max. dose (Gy) coverage % C.I. Int. dose (mJ)
1 IVC 2.8 9.5 1 x 4 mm no 12 80% 15 100% 0.29 0.1
2 IVE 3.6 9.3 1 x 4 mm no 12 85% 14.1 100% 0.38 0.1
3 IVC 3.8 13 1 x 4 mm no 12 80% 15 100% 0.39 0.2
4 IVE 3.7 23.3 1 x 4 mm yes 12 70% 16 100% 0.62 0.3
5 TMA 16.6 399 13 x 4 mm yes 12 50% 24 100% 0.78 6.5
6 TMO 4.9 9 1 x 4 mm yes 12 65% 18.5 100% 0.15 0.1
7 ICO 5.1 17.5 2 x 4 mm yes 11 60% 18.3 100% 0.2 0.2
8 TMO 4.1 9.1 1 x 4 mm yes 12 65% 18.5 100% 0.13 0.1
9 ICO 4.5 6.4 3 x 4 mm yes 11 80% 13.8 100% 0.19 0.1
10 TMA 5.1 39.5 2 x 4 mm yes 11 70% 22 100% 0.84 0.5
Table 2: Dosimetric data. Legend: BCB=beam channel blocking; C.I.=Paddick Conformity Index; Int. dose=integrated dose; IVE=intravestibular; ICO=intracochlear; IVC=intravestibulocochlear; TMA=transmacular; TMO=transmodiolar.