Cathier

Pascal Cathier, Paris FR

Patent application number	Description	Published
20120190972	DEPTH DISAMBIGUATION OF INTERVENTIONAL INSTRUMENTS FROM A SINGLE X-RAY PROJECTION IMAGE AND ITS CALIBRATION - 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.	07-26-2012

Pascal Yves Francois Cathier, Paris FR

Patent application number	Description	Published
20120245458	COMBINATION OF ULTRASOUND AND X-RAY SYSTEMS - 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.	09-27-2012

Pascal Yves Francois Cathier, Asnieres-Sur-Seine FR

Patent application number	Description	Published
20130308844	MEDICAL IMAGING DEVICE FOR PROVIDING AN IMAGE REPRESENTATION SUPPORTING THE ACCURATE POSITIONING OF AN INVENTION DEVICE IN VESSEL INTERVENTION PROCEDURES - A medical imaging device and a method for providing an image representation supporting inaccurate positioning of an intervention device in a vessel intervention procedure is proposed. Therein, an anatomy representation (AR) of a vessel region of interest and at least one angiogram X-ray image (RA) and a live fluoroscopy X-ray image (LI) are acquired. The following steps are performed when a radio-opaque device is fixedly arranged within the vessel region of interest: (a) registering the anatomy representation to the at least one angiogram X-ray image in order to provide an anatomy-angiogram-registration (R	11-21-2013
20130336558	VISUALIZATION FOR NAVIGATION GUIDANCE - The present invention relates to visualizing information of an object. In order to provide spatial information and in addition situation specific data to the user while ensuring an effective perceptibility, a method (	12-19-2013
20140023250	MEDICAL IMAGING SYSTEN AND METHOD FOR PROVIDING AN IMAGE REPRESENTATION SUPPORTING ACCURATE GUIDANCE OF AN INTERVENTION DEVICE IN A VESSEL INTERVENTION PROCEDURE - The present invention relates to visualizing information of an object. In order to provide spatial information and in addition situation specific data to the user while ensuring an effective perceptibility, a method (	01-23-2014
20140031676	EMBEDDED 3D MODELLING - The present invention relates to an image processing device for guidance support, a medical imaging system for providing guidance support, a method for guidance support, a method for operating an image processing device for guidance support, as well as a computer program element, and a computer readable medium. In order to provide enhanced and easily perceptible information about the actual situation, it is proposed to provide (	01-30-2014
20140294152	PAIRING OF AN ANATOMY REPRESENTATION WITH LIVE IMAGES - The present invention relates to pairing an anatomy representation with live images. In order to provide an enhanced and more flexible pairing of an anatomy representation with live images, for pairing an anatomy representation with live images, reference projected-anatomy image data of a device in a spatial relation to the anatomy is provided (	10-02-2014