论文信息 - Detection of Vortical Structures in 4D Velocity Encoded Phase Contrast MRI Data Using Vector Template Matching

Detection of Vortical Structures in 4D Velocity Encoded Phase Contrast MRI Data Using Vector Template Matching

We present the Adaptive Vector Pattern Matching (AVPM) method, a novel method for the detection of vortical structures specifically designed for velocity encoded 4D PCMRI datasets. AVPM is based on vector pattern matching combined with robust orientation estimation. This combination provides for a simple yet robust algorithm, which is a priori axial flow invariant. We demonstrate these properties by comparing the performance of AVPM with Heiberg's Vector Pattern Matching algorithm.

[1] Michael Markl,et al. Interdependencies of aortic arch secondary flow patterns, geometry, and age analysed by 4-dimensional phase contrast magnetic resonance imaging at 3 Tesla , 2012, European Radiology.

[2] Brian A. Maicke,et al. Advancements in Theoretical Models of Confined Vortex Flowfields , 2007 .

[3] Jinhee Jeong,et al. On the identification of a vortex , 1995, Journal of Fluid Mechanics.

[4] Einar Heiberg,et al. Three-Dimensional Flow Characterization Using Vector Pattern Matching , 2003, IEEE Trans. Vis. Comput. Graph..

[5] MING JIANG,et al. Detection and Visualization of Vortices , 2005, The Visualization Handbook.

[6] C. Dalton,et al. Numerical study of viscous flow in a cavity , 1973 .