Apn Health, LLC

Ge Medical Systems Global Technology Company, LLC

Mark Palma

Donald Brodnick

Jasbir Sra

Barry F Belanger

David G Jansson

Bruce Langenbach

John H Jenkins

Barry Belanger

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 corrected 2D image measurements.

Automatically determining 3D catheter location and orientation using 2D fluoroscopy only

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 (), 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 () to the image measurements, and calculating the 3D position and orientation of the medical object from the corrected 2D image measurements.

A method for analyzing stored frames of time-stamped imaging data and time-stamped physiologic data obtained during a study of a patient during a plurality of cardiac cycles. The imaging data includes frames representative of a succession of images of the patient's heart. These configurations use a computer to analyze the stored physiologic data to determine times of a selected phase in the plurality of cardiac cycles, select, in the plurality of cardiac cycles, stored images corresponding to the determined times of the selected phase, and align and average images corresponding to the selected phase across the plurality of cardiac cycles to produce a single representative frame of image data.

Methods and apparatus for analysis of angiographic and other cyclical images

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Fitchburg, WI, United States of America

Mark Palma