IMRT

Head & Neck - high degree of modulation, D= (30 × 1.8) Gy, 2 VMAT arcs

Head

treatment time t

MLCi2 Monaco 3.3

Agility Monaco 3.3

Versa HD Monaco 3.3

and neck

Homogeneity Index OAR Parotis, mean dose OAR Spinal Cord, max dose OAR Lips, Mean dose OAR Brain stem, mean dose beam-on time per fraction number of MU's delivered

1.12

1.14

1.13

Versa HD

29.79 Gy

28.86 Gy

30.91 Gy

Agility

44.33 Gy

42.40 Gy

44.62 Gy

27.99 Gy

28.01 Gy

30.82 Gy

MLCi2

28.32 Gy

26.94 Gy

29.46 Gy

0

50

100

150

200

250

300

350

293 s

182 s

169 s

t in (s)

635

633

1123

Name I Folie 1 I Datum