Recalage et mise en correspondance d'images tomographiques et de projection : Résultats préliminaires d'une solution hybride en radiochirurgie Recalage et mise en correspondance d'images tomographiques et de projection : Résultats préliminaires d'une solution hybride en radiochirurgie

and key words A new method for 2D/3D registration, applied to Magnetic Resonance Imaging (3D) and to X-Ray angiography (2D), has been adapted and used for planning treatment in radiosurgery. The imaging flow needed for planning radiosurgery is considerable and using registration technique would make lighter the imaging protocol without restricting planning. We describe the preliminary results of the evaluation giving criteria to compare registration technique and localization using stereotactic frame, which is the gold standard method. Preliminary results obtained during this first step in validating registration put forward which kind of MRI sequence are more suitable to registration. 2D/3D registration, matching, MRI, X-ray Angiography, treatment planning in radiosurgery.