How flexible is the neck ?
Results: OAR/lymphnode
Count of C3-C5 found within margin after online
registration in 249 CBCT scans
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
110.0
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Margin(cm)
Count (%)
C3-C5 - Multi Match
C3-C5 - Overall ROI
C3-C5 - Larynx
Conclusions
IMRT/IGRT for Head and Neck results in:
– Better target coverage
– Lower toxicity
– Higher dependence on target volume
delineation
– Patient is more flexible than one margin
– 2D detects less than 3D
Special thanks to:
♥
Marcel van Herk
♥
Jan-Jakob Sonke
♥
Corine van Vliet
♥
♥
Peter
Peter
Remeijer
Remeijer
♥
Danny Minkema
♥
Rianne de Jong
♥
Suzanne van Beek
♥
Rajko Topolnjak
♥
Jasper Nijkamp
♥
Eugene Damen
♥
Maddelena Rossi
♥
Anja Betgen
♥
Jose Belderbos
♥
Jochem Wolthaus
♥
Monique Smitmans
ns
♥
Floris Pos
♥
Josien de Bois
♥
Lambert Zijp
♥
Joop Duppen
♥
Simon van Kranen
♥
Angelo Mencarelli
♥
Joos Lebesque
♥
And many Others………