IMRT

Image guidance accuracy

“ Hidden-target test on anthropomorphic phantom, pelvic region ”

kV 0°-90° bony

kV 45°-135° bony

kV CBCT CW bony kV 0°-90° marker

X (LAT) 0.23 (0.10) mm 0.08 (0.18) mm -0.63 (0.04) mm 0.17 (0.06) mm -0.18 (0.09) mm -0.20 (0.05) mm -0.08 (0.11) mm -0.18 (0.03) mm -0.13 (0.04) mm -0.58 (0.16) mm 0.32 (0.27) mm -0.71 (0.03) mm 3D VECTOR modulus 0.62 mm 0.67 mm 0.71 mm 0.75 mm Y (LONG) Z (VERT)