Fast Calibration for 3D Ultrasound Imaging and Multimodality Image Registration

Introduction Three-dimensional (3D) localization of two-dimensional (2D) ultrasound (US)
images involves the determination of the position and orientation of a set of acquired 2D US images with respect to a given coordinate system. Accurate image localization is critical when US is used for the measurement of organ volumes and for the monitoring of anatomy shifts during surgical intervention. Calibration must be performed before US image localization is feasible, though existing calibration procedures are slow and complex. Technology description Researchers at the University of Washington have developed a fast and accurate calibration method for computing the position and orientation of 2D ultrasound images in 3D space during an ultrasound scan. This technique can work with any position sensor (e.g., mechanical and robotic arms as well as optical, acoustical, and magnetic tracking systems). This method requires only one US image and takes approximately 2-3 minutes, which is a significant improvement over existing protocols. Business opportunity The simplicity and ease of use of this method will make it useful for commercial US systems designed for 3D US, for registration applications between US and other tomographic (CT, MR, PET) modalities, and for routine calibration and quality control in clinical sites. The U.S. market for medical ultrasound systems is expected to reach $1.6 billion by 2010.

US 6,775,404

Type of Offer: Licensing

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