Abdominal aortic aneurysm (AAA) is a common and frequently lethal disease of older Americans. No medical therapy has been proven effective in retarding progression of small AAAs prior to surgical repair. With the emerging ability of magnetic resonance (MR) flow imaging and MR-based computational analysis to define aortic hemodynamic conditions, and bio-imaging strategies to monitor aortic infla...

Intrinsic curvature flows can be used to design Riemannian metrics by prescribed curvatures. This chapter presents three discrete curvature flow methods that are recently introduced into the engineering fields: the discrete Ricci flow and discrete Yamabe flow for surfaces with various topology, and the discrete curvature flow for hyperbolic 3manifolds with boundaries. For each flow, we introduc...

By transmitting acoustic energy into the body and receiving and processing the returning reflections, phased-array ultrasound systems can generate images of internal organs and structures, map blood flow and tissue motion, and provide highly accurate blood velocity information. Historically, the large number of high-performance phased-array transmitters and receivers required to implement these...

By transmitting acoustic energy into the body and receiving and processing the returning reflections, phased-array ultrasound systems can generate images of internal organs and structures, map blood flow and tissue motion, and provide highly accurate blood velocity information. Historically, the large number of high-performance phased-array transmitters and receivers required to implement these...

By transmitting acoustic energy into the body and receiving and processing the returning reflections, phased-array ultrasound systems can generate images of internal organs and structures, map blood flow and tissue motion, and provide highly accurate blood velocity information. Historically, the large number of high-performance phased-array transmitters and receivers required to implement these...

Non-invasive flow detection and in-vivo measurement are one of the most requested clinical applications for medical imaging modalities to investigate vascular pathologies and responsiveness to drug therapy. Implementing speckle variance calculation & visualization in a market-proven optical coherence tomography (OCT) system we demonstrate an angiography imaging algorithm that provides angle ind...

Medical applications of ultrasound were first investigated about seventy years ago. It has rapidly evolved since then, becoming an essential tool in medical imaging. Ultrasound ability to provide real time images with frame rates exceeding several hundred frames per second allows one to view rapid anatomical changes as well as to guide minimal invasive procedures. By, combining Doppler techniqu...

This chapter introduces the concepts, theories and algorithms of discrete curvature flows for surfaces with arbitrary topologies. Discrete curvature flow for hyperbolic 3-manifolds with geodesic boundaries is also presented. Curvature flow method can be used to design Riemannian metrics by prescribed curvatures, and applied for parameterization in graphics, shape registration in computer vision...