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    Combining Map Displays and 3D Visualizations for the Analysis of Scalar Data on Cerebral Aneurysm Surfaces

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    Date
    2009
    Author
    Neugebauer, Mathias
    Gasteiger, Rocco
    Beuing, Oliver
    Diehl, Volker
    Skalej, Martin
    Preim, Bernhard
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    Abstract
    Cerebral aneurysms result from a congenital or evolved weakness of stabilizing parts of the vessel wall and potentially lead to rupture and a life-threatening bleeding. Current medical research concentrates on the integration of blood flow simulation results for risk assessment of cerebral aneurysms. Scalar flow characteristics close to the aneurysm surface, such as wall shear stress, form an important part of the simulation results. Aneurysms exhibit variable surface shapes with only few landmarks. Therefore, the exploration and mental correlation of different surface regions is a difficult task. In this paper, we present an approach for the intuitive and interactive overview visualization of near wall flow data that is mapped onto the surface of a 3D model of a cerebral aneurysm. We combine a multi-perspective 2D projection map with a standard 3D visualization and present techniques to facilitate the correlation between a 3D model and a related 2D map. An informal evaluation with 4 experienced radiologists has shown that the map-based overview actually improves the surface exploration. Furthermore, different color schemes were discussed and, as a result, an appropriate color scheme for the visual analysis of the wall shear stress is presented.
    BibTeX
    @article {10.1111:j.1467-8659.2009.01459.x,
    journal = {Computer Graphics Forum},
    title = {{Combining Map Displays and 3D Visualizations for the Analysis of Scalar Data on Cerebral Aneurysm Surfaces}},
    author = {Neugebauer, Mathias and Gasteiger, Rocco and Beuing, Oliver and Diehl, Volker and Skalej, Martin and Preim, Bernhard},
    year = {2009},
    publisher = {The Eurographics Association and Blackwell Publishing Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/j.1467-8659.2009.01459.x}
    }
    URI
    http://dx.doi.org/10.1111/j.1467-8659.2009.01459.x
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    • 28-Issue 3
    • EuroVis09: Eurographics/ IEEE Symposium on Visualization

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