3D navigation for interstitial stereotaxic brachytherapy

摘要: AIM The aim of this paper is to describe the adaption 3D-navigation for interstitial brachytherapy. new method leads prospective and therefore improved planning therapy (position needle dose distribution) possibility a virtual simulation (control if vessels or nerves are on pathway needle). MATERIAL AND METHODS EasyGuide Neuro navigation system (Philips) was adapted in way, that needles brachytherapy were made connectable pointer correctly displayed screen. To determine positioning accuracy, several attempts performed hit defined targets phantoms. Two methods used: "free navigation", where under control system, "guided navigation" an aligned template used additionally lead target. In addition mask tested, whether it met requirements stable reproducible positioning. potential applying clinical practice tested with anatomical specimen. RESULTS About 91% all lied within 5 mm. There even better results more rigid table (94% < 4 mm). No difference could be seen between both application ("free "navigation template"), they showed same accuracy. CONCLUSIONS accuracy phantom experiments confirmation by experiment specimen excellent can expected using tables patient supporting systems.