Abstract: The present invention refers to the field of cardiac electrophysiology (EP) and, more specifically, to image-guided radio frequency 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.

Abstract: The invention proposes to detect and track an intervention device in a 2D fluoroscopy image and to steer an ultrasound probe beam towards this device. Therefore, a method and corresponding system is proposed, by which an ultrasound probe is registered in a fluoroscopy image, wherein the registering includes the estimation of the position and of the orientation of the probe relative to the fluoroscopy.

Abstract: A device for localization of an object of interest in a subject includes a registration unit for registering a 3D-representation of the subject having a plurality of segments corresponding to a plurality of structural regions of the subject, with a 2D-image. The registration unit is configured to define a plurality of areas in the image such that at least one area of the plurality of areas is associated with a respective region of the plurality of regions. A localization unit is configured to localize the object, and extract an indication of the object from the image by processing the image. The processing is limited to an object area of the plurality of areas which is associated with a predetermined object region.

Abstract: A respiration determination apparatus includes a bronchial tree image data set providing unit which provides a bronchial tree image data set showing a bronchial tree. The apparatus further includes a bronchial tree detection unit for detecting the bronchial tree in the bronchial tree image data set, and a respiratory information determination unit for determining information about the respiration from the detected bronchial tree.

Abstract: The invention proposes to detect and track an intervention device in a 2D fluoroscopy image and to steer an ultrasound probe beam towards this device. Therefore, a method and corresponding system is proposed, by which an ultrasound probe is registered in a fluoroscopy image, wherein the registering includes the estimation of the position and of the orientation of the probe relative to the fluoroscopy.

Abstract: X-ray images are projective, meaning that the 3D geometry is flattened along projection lines going from the source to the detector. In particular procedures, such as mapping or ablation, the interventional instrument lies on the wall of the organ. Using a 3D segmentation of this organ registered to the x-ray, the instrument necessarily lies on the intersection of this surface with its projection line. The line and the surface typically intersect with a segmentation surface at a discrete number of points (typically 2 for shapes such as the anterior of the LA). One then has just to disambiguate between these different possible locations to determine the exact location of the instrument. In this invention, we propose to use the apparent width of the instrument measured in x-ray images to accomplish this task.

Abstract: The present invention refers to the field of cardiac electrophysiology (EP) and, more specifically, to image-guided radio frequency 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.

Abstract: The present invention relates to a device, a method and a computer program which allow for the localization of an object of interest in a subject. The device includes a registration unit (25) for registering (120) a 3D-representation of the subject, which comprises a plurality of segments corresponding to a plurality of structural regions of the subject, with a 2D-image (200), wherein the registration unit is adapted for defining a plurality of areas (205, 210, 215) in the image such that at least one area of the plurality of areas is associated with a respective region of the plurality of regions, and a localization unit (30) for localizing (125) the object, extracting an indication of the object from the image by processing the image, wherein the processing is limited to an object area of the plurality of areas which is associated with a predetermined object region.

Abstract: The present invention relates to a respiration determination apparatus and method for determining respiration of a person (3). The apparatus comprises a bronchial tree image data set providing unit (12), which provides a bronchial tree image data set showing a bronchial tree. The apparatus comprises further a bronchial tree detection unit (14) for detecting the bronchial tree in the bronchial tree image data set and a respiratory information determination unit (30) for determining information about the respiration from the detected bronchial tree.