Figure 7

Planning example: Upper left : Sentinel lymph nodes left internal iliac (2), right internal iliac (1), perirectal on an axial SPECT image (prone position). Upper middle: IMRT planning: sentinel node localisations and second order PTV are outlined (prone position). The 95% isodose curve is shaped green. Upper right : 3D-CRT planning (four-field-box): sentinel node localisations and second order PTV are outlined (prone position). The 95% isodose curve is shaped green. Lower left: Dose-volume-histogram IMRT. Lower right: Dose-volume-histogram 3D-CRT