CARDIAC- AND/OR RESPIRATORY-GATED IMAGE ACQUISITION SYSTEM AND METHOD FOR VIRTUAL ANATOMY ENRICHED REAL-TIME 2D IMAGING IN INTERVENTIONAL RADIOFREQUENCY ABLATION OR PACEMAKER PLACEMENT PROCEDURES

摘要

The present invention refers to the field of cardiac electrophysiology (EP) and, more specifically, to image-guided radiofrequency ablation and pacemaker placement procedures. For those procedures, it is proposed to display the overlaid 2D navigation motions of an interventional tool intraoperatively obtained from the same projection angle for tracking navigation motions of an interventional tool during an image-guided intervention procedure while being navigated through a patient�s bifurcated coronary vessel or cardiac chambers anatomy in order to guide e.g. a cardiovascular catheter to a target structure or lesion in a cardiac vessel segment of the patient�s coronary venous tree or to a region of interest within the myocard. In such a way, a dynamically enriched 2D reconstruction of the patient�s anatomy is obtained while moving the interventional instrument. By applying a cardiac and/or respiratory gating technique, it can be provided that the 2D live images are acquired during the same phases of the patient�s cardiac and/or respiratory cycles. Compared to prior-art solutions which are based on a registration and fusion of image data independently acquired by two distinct imaging modalities, the accuracy of the two-dimensionally reconstructed anatomy is significantly enhanced.