VIRTUAL SIMULATION - FIRST CLINICAL-RESULTS IN PATIENTS WITH PROSTATE-CANCER

Aim: Investigation of options of virtual simulation in patients with l ocalized prostate cancer. Patients and Methods: Twenty-four patients s uffering from prostate cancer were virtual simulated. The clinical tar get volume was contoured and the planning target volume was defined af ter CT scan. The isocenter of the planning target volume was determine d and marked at patient's skin. The precision of patients marking was controlled with conventional simulation after physical radiation treat ment planning. Results: Mean differences of the patient's mark reveale d between the 2 simulations in all room axes around 1 mm. The organs a t risk were visualized in the digital reconstructed radiographs. Concl usion: The precise patient's mark of the isocentre by virtual simulati on allows to skip the conventional simulation. The visualisation of or gans at risk leeds to an unnecessarity of an application of contrast m edium and to a further relieve of the patient. The personal requiremen t is not higher in virtual simulation than in conventional CT based ra diation treatment planning.