90 / 1544
LAT
AP
CC
Ex. 1
LAT
AP
CC
Ex. 2
(x,y,z)
COM
,
Visicoil
=(x,y,z)
COM,GTV
+Cte
“
Max deviation
”
1.2 mm in CC
(CT slice 2 mm)
+ Regular verification of marker surrogate value on CT imaging
Surrogate value: COM Single Visicoil marker vs. COM GTV
Fiducial marker surrogate value for
GTV position