Immersive volume rendering of blood vessels

In this paper, we present a novel method of visualizing flow in blood vessels. Our approach reads unstructured tetrahedral data, resamples it, and uses slice based 3D texture volume rendering. Due to the sparse structure of blood vessels, we utilize an octree to efficiently store the resampled data by discarding empty regions of the volume. We use animation to convey time series data, wireframe surface to give structure, and utilize the StarCAVE, a 3D virtual reality environment, to add a fully immersive element to the visualization. Our tool has great value in interdisciplinary work, helping scientists collaborate with clinicians, by improving the understanding of blood flow simulations. Full immersion in the flow field allows for a more intuitive understanding of the flow phenomena, and can be a great help to medical experts for treatment planning.

[1]  Ming-Chen Hsu,et al.  Computational vascular fluid–structure interaction: methodology and application to cerebral aneurysms , 2010, Biomechanics and modeling in mechanobiology.

[2]  Rhadamés Carmona,et al.  Octreemizer: A Hierarchical Approach for Interactive Roaming Through Very Large Volumes , 2002, VisSym.

[3]  Joerg Meyer,et al.  Incremental Slicing Revisited : Accelerated Volume Rendering Of Unstructured Meshes , 2002 .

[4]  K Tsuchiya,et al.  Volume-rendered 3D display of MR angiograms in the diagnosis of cerebral arteriovenous malformations. , 2003, Acta radiologica.

[5]  Cláudio T. Silva,et al.  Hardware-assisted visibility sorting for unstructured volume rendering , 2005, IEEE Transactions on Visualization and Computer Graphics.

[6]  Andreas Wierse,et al.  Collaborative and Interactive Visualization in a Distributed High Performance Software Environment , 1996 .

[7]  Ulrich Lang,et al.  Volume Rendering in a Virtual Environment , 2001, EGVE/IPT.

[8]  Charles Keller,et al.  Practical Vessel Imaging by Computed Tomography in Live Transgenic Mouse Models for Human Tumors , 2005, Molecular imaging.

[9]  Thomas Ertl,et al.  Hardware-based view-independent cell projection , 2002, VVS '02.

[10]  Brian Cabral,et al.  Accelerated volume rendering and tomographic reconstruction using texture mapping hardware , 1994, VVS '94.

[11]  Dirk Bartz,et al.  Interactive exploration of extra- and interacranial blood vessels , 1999, Proceedings Visualization '99 (Cat. No.99CB37067).

[12]  Yuri Bazilevs,et al.  High-Fidelity Tetrahedral Mesh Generation from Medical Imaging Data for Fluid-Structure Interaction Analysis of Cerebral Aneurysms , 2009 .

[13]  William Schroeder,et al.  The Visualization Toolkit: An Object-Oriented Approach to 3-D Graphics , 1997 .

[14]  R. Holman,et al.  Hospitalizations for Kawasaki Syndrome Among Children in the United States, 1997–2007 , 2010, The Pediatric infectious disease journal.

[15]  Bernd Hamann,et al.  Multiresolution techniques for interactive texture-based volume visualization , 1999, Proceedings Visualization '99 (Cat. No.99CB37067).