caa a22 4500 475791487 CHVBK 20180406123712.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1023/A:1006418406598 doi (NATIONALLICENCE)springer-10.1023/A:1006418406598 Transient streamlines: texture synthesis for in vivo flow visualisation [Elektronische Daten] [Guang-Zhong Yang, Philip Kilner, Raad Mohiaddin, David Firmin] Magnetic resonance (MR) imaging is a versatile technique for providing detailed information on blood vessel morphology and function. With its ability to acquire multi-dimensional cine flow data, MR is also an important tool for providing insight into blood flow patterns in vivo. The purpose of this paper is to describe the application of texture synthesis for flow visualisation. Two related issues are addressed, one is the removal of image noise from the acquired velocity data to ensure a correct representation of the underlying flow structure, and the other is the formation of transient streamlines through flow texture synthesis. The process of noise removal is achieved by using a convex projection algorithm based on the principle of mass conservation, whereas transient streamlines are formed via an iterative orientated pattern formation and enhancement procedure. The method described provides realistic visualisation of the flow patterns and avoids distortions caused by integration errors associated with conventional streamline tracking techniques. Effectiveness of the method applied to MR flow data acquired in healthy volunteers and patients is demonstrated. Kluwer Academic Publishers, 2000 magnetic resonance imaging nationallicence convex projection nationallicence flow visualisation nationallicence texture synthesis nationallicence Yang Guang-Zhong Department of Computing, Imperial College, London, UK aut Kilner Philip Magnetic Resonance Unit, Royal Brompton Hospital, London, UK aut Mohiaddin Raad Magnetic Resonance Unit, Royal Brompton Hospital, London, UK aut Firmin David Magnetic Resonance Unit, Royal Brompton Hospital, London, UK aut The International Journal of Cardiac Imaging Kluwer Academic Publishers 16/3(2000-06-01), 175-184 0167-9899 16:3<175 2000 16 10554 https://doi.org/10.1023/A:1006418406598 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1006418406598 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Guang-Zhong Department of Computing, Imperial College, London, UK aut NATIONALLICENCE 700 1- Kilner Philip Magnetic Resonance Unit, Royal Brompton Hospital, London, UK aut NATIONALLICENCE 700 1- Mohiaddin Raad Magnetic Resonance Unit, Royal Brompton Hospital, London, UK aut NATIONALLICENCE 700 1- Firmin David Magnetic Resonance Unit, Royal Brompton Hospital, London, UK aut NATIONALLICENCE 773 0- The International Journal of Cardiac Imaging Kluwer Academic Publishers 16/3(2000-06-01), 175-184 0167-9899 16:3<175 2000 16 10554 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer