2 research outputs found
Advancements and Breakthroughs in Ultrasound Imaging
Ultrasonic imaging is a powerful diagnostic tool available to medical practitioners, engineers and researchers today. Due to the relative safety, and the non-invasive nature, ultrasonic imaging has become one of the most rapidly advancing technologies. These rapid advances are directly related to the parallel advancements in electronics, computing, and transducer technology together with sophisticated signal processing techniques. This book focuses on state of the art developments in ultrasonic imaging applications and underlying technologies presented by leading practitioners and researchers from many parts of the world
Beveled-Tip Needle-Steering Using 3D Ultrasound, Mechanical-Based Kalman Filter and Curvilinear ROI Prediction
International audienceThis paper introduces a new robust 3D ultrasound needle detection approach integrated in a 3D needle steering system associated to a real-time path planning. The robustness of an existing algorithm is improved by limiting the needle detection to a curvilinear region of interest (ROI) using a novel mechanical-based prediction model. This linear model is also used in a Kalman filter to reduce detection noise and reject false detections. These two improvements drastically increase quality of our feedback. Finally, the 3D needle steering system is able to reach a target in phantoms with a maximal error of 0.8 mm without obstacle and 1.6 mm with obstacle