Ultrasound Image (image) Society for Industrial and Applied Mathematics Share Print E-Mail Caption Selected frames of the original ultrasound images (left to right) and the region of interest (ROI) tracking results (top to bottom). Credit Xiaoqun Zhang. Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.