Document Type
Conference Proceeding
Publication Date
2019
Journal
Proc. SPIE 10951, Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling, 1095126
URL with Digital Object Identifier
https://doi.org/10.1117/12.2506193
Abstract
Intracardiac echocardiography (ICE) systems are routinely used in percutaneous cardiac interventions for inter-ventional and surgical navigation. Conavi’s Foresight ICE is a new ICE system that uses a mechanically rotatingtransducer to generate a 2D conical surface image in 3D space, in contrast to the more typical side-firing phasedarray. When combined with magnetic tracking technology, this unique imaging geometry poses new calibrationchallenges and opportunities. Existing ultrasound calibration methods are designed for 2D planar images andcannot be trivially applied to unique 2.5D conical surface images provided by the Foresight ICE system. In thiswork a spatial and temporal calibration technique applied to the unique case of conical ultrasound image data isdescribed and validated. Precision of calibration parameters is used to quantify the validation of our calibrationmethod and the overall system accuracy is validated using point source and sphere centroid localization. We re-port a maximum error of 5.07 mm for point reconstruction accuracy and 1.94 mm for sphere centroid localizationaccuracy
Citation of this paper:
Hareem Nisar, John Moore, Natasha Alves, Germain Hwang, Terry M. Peters, and Elvis C. S. Chen "Ultrasound calibration for unique 2.5D conical images", Proc. SPIE 10951, Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling, 1095126 (8 March 2019); https://doi.org/10.1117/12.2506193