Abstract: A method for automatically determining the 3D position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising: (a) capturing a stream of digitized 2D images from a single-plane fluoroscope; (b) detecting an image of the medical object in a subset of the digital 2D images; (c) applying to the digital 2D images calculations which preserve original pixel intensity values and permit statistical calculations thereon, using (i) multiple sequential determinations of a midline of the medical object image, (ii) a plurality of unfiltered raw-data cross-sectional intensity profiles perpendicular to each sequentially-determined midline, (iii) removal of outlier profiles from each plurality of profiles, and (iv) statistically combining each plurality of profiles to estimate image dimensions; (d) applying conical projection and radial elongation corrections to the image measurements; and (e) calculating the 3D position and orientation of the medical object from the corre

Abstract: A method for determining the 3D location of a catheter distal end portion in a patient's body, the distal end portion including an electrode, the method comprising: (a) placing first and second body-surface patches on the patient in positions such that body region of interest is therebetween; (b) driving an alternating current between the patches; (c) measuring the voltage at the electrode and substantially contemporaneously capturing a 2D fluoroscopic image of the region of interest; and (d) determining the 3D location of the catheter distal end portion from the image and the measured voltage. A primary application of this method is 3D navigation during cardiac interventional procedures.

Abstract: A method for automatically determining the 3D position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising: (a) capturing a stream of digitized 2D images from a single-plane fluoroscope; (b) detecting an image of the medical object in a subset of the digital 2D images; (c) applying to the digital 2D images calculations which preserve original pixel intensity values and permit statistical calculations thereon, using (i) multiple sequential determinations of a midline of the medical object image, (ii) a plurality of unfiltered raw-data cross-sectional intensity profiles perpendicular to each sequentially-determined midline, (iii) removal of outlier profiles from each plurality of profiles, and (iv) statistically combining each plurality of profiles to estimate image dimensions, thereby to measure the medical-object image from a final estimation of image dimensions; (d) applying conical projection and radial elongation corrections to the image measurements;

Abstract: A method for automatically determining the 3D position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising capturing a stream of digitized 2D images from a single-plane fluoroscope (10), detecting the image of the medical object in a subset of the digital 2D images, applying pixel-level geometric calculations to measure the medical-object image, applying conical projection and radial elongation corrections (31) to the image measurements, and calculating the 3D position and orientation of the medical object from the corrected 2D image measurements.

Abstract: A system and method to manage direction of an ionizing radiation toward an exposed subject is provided. The system can perform receiving a request from a customer to establish an internet connection to communicate between a remote office and the system directing the ionizing radiation toward the exposed subject; automatically communicating a status information and individual dose data associated with an event where direction of ionizing radiation that exceeds a threshold; automatically creating and communicating a report via the internet connection to the customer. The report can include an indication of the event where direction of ionizing radiation exceeds the threshold and a comparison of the individual radiation dose data and an individual status operation of system at time of the event relative to a benchmark defined by radiation dose data and status information acquired from a population of other systems.

Abstract: A method for automatically determining the 3D position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising capturing a stream of digitized 2D images from a single-plane fluoroscope (10), detecting the image of the medical object in a subset of the digital 2D images, applying pixel-level geometric calculations to measure the medical-object image, applying conical projection and radial elongation corrections (31) to the image measurements, and calculating the 3D position and orientation of the medical object from the corrected 2D image measurements.

Abstract: A system and method to manage direction of an ionizing radiation toward an exposed subject is provided. The system can perform receiving a request from a customer to establish an internet connection to communicate between a remote office and the system directing the ionizing radiation toward the exposed subject; automatically communicating a status information and individual dose data associated with an event where direction of ionizing radiation that exceeds a threshold; automatically creating and communicating a report via the internet connection to the customer. The report can include an indication of the event where direction of ionizing radiation exceeds the threshold and a comparison of the individual radiation dose data and an individual status operation of system at time of the event relative to a benchmark defined by radiation dose data and status information acquired from a population of other systems.

Abstract: A system and method to manage direction of an ionizing radiation toward an exposed subject is provided. The system can perform receiving a request from a customer to establish an internet connection to communicate between a remote office and the system directing the ionizing radiation toward the exposed subject; automatically communicating a status information and individual dose data associated with an event where direction of ionizing radiation that exceeds a threshold; automatically creating and communicating a report via the internet connection to the customer. The report can include an indication of the event where direction of ionizing radiation exceeds the threshold and a comparison of the individual radiation dose data and an individual status operation of system at time of the event relative to a benchmark defined by radiation dose data and status information acquired from a population of other systems.

Abstract: A system and method to manage direction of an ionizing radiation toward an exposed subject is provided. The system can perform receiving a request from a customer to establish an internet connection to communicate between a remote office and the system directing the ionizing radiation toward the exposed subject; automatically communicating a status information and individual dose data associated with an event where direction of ionizing radiation that exceeds a threshold; automatically creating and communicating a report via the internet connection to the customer. The report can include an indication of the event where direction of ionizing radiation exceeds the threshold and a comparison of the individual radiation dose data and an individual status operation of system at time of the event relative to a benchmark defined by radiation dose data and status information acquired from a population of other systems.