Patent ID: 9131922
Filing Date: 2015-09-15
Classification: A61B

Abstract:
1. A method for calibrating images obtained from an ultrasound imaging device where the imaging device is supported by a positioning mechanism, comprising: obtaining at least first and second images from an ultrasound imaging device while said positioning device supports the ultrasound imaging device in first and second positions, respectively, wherein the first and second of images are obtained through rotation of said ultrasound imaging device about an axis of rotation wherein the first and second images are mirror images acquired at angles 180 degrees apart, wherein said positioning mechanism is designed to limit movement of said ultrasound imaging device to said axis of rotation between said first and second positions; identifying a first distance between said an object in said first image and a known reference point in said first image; identifying a second distance between said object in said second image and the known reference point in the second image; determining a difference in said first and second distances; and calculating a transformation, based on said differences of said first and second images, wherein said transformation defines a calibration of offsets between said reference point of said ultrasound images and said axis of movement of said positioning mechanism.