Search For:

Displaying 1-22 out of 22 total
Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow Data using Line Predicates
Found in: IEEE Transactions on Visualization and Computer Graphics
By Benjamin Kohler,Rocco Gasteiger,Uta Preim,Holger Theisel,Matthias Gutberlet,Bernhard Preim
Issue Date:December 2013
pp. 2773-2782
Cardiovascular diseases (CVD) are the leading cause of death worldwide. Their initiation and evolution depends strongly on the blood flow characteristics. In recent years, advances in 4D PC-MRI acquisition enable reliable and time-resolved 3D flow measurin...
 
Visualization and Interaction Techniques for the Exploration of Vascular Structures
Found in: Visualization Conference, IEEE
By Horst K. Hahn, Bernhard Preim, Dirk Selle, Heinz-Otto Peitgen
Issue Date:October 2001
pp. N/A
We describe a pipeline of image processing steps for deriving symbolic models of vascular structures from radiological data which reflect the branching pattern and diameter of vessels. For the visualization of these symbolic models, concatenated truncated ...
 
Interactive Patient-Specific Vascular Modeling with Sweep Surfaces
Found in: IEEE Transactions on Visualization and Computer Graphics
By Jan Kretschmer,Christian Godenschwager,Bernhard Preim,Marc Stamminger
Issue Date:December 2013
pp. 2828-2837
The precise modeling of vascular structures plays a key role in medical imaging applications, such as diagnosis, therapy planning and blood flow simulations. For the simulation of blood flow in particular, high-precision models are required to produce accu...
 
Interactive Visual Analysis of Heterogeneous Cohort-Study Data
Found in: IEEE Computer Graphics and Applications
By Paolo Angelelli,Steffen Oeltze,Judit Haasz,Cagatay Turkay,Erlend Hodneland,Arvid Lundervold,Astri J. Lundervold,Bernhard Preim,Helwig Hauser
Issue Date:September 2014
pp. 70-82
Medical cohort studies enable the study of medical hypotheses with many samples. Often, these studies acquire a large amount of heterogeneous data from many subjects. Usually, researchers study a specific data subset to confirm or reject specific hypothese...
 
Interactive, Graph-based Visual Analysis of High-dimensional, Multi-parameter Fluorescence Microscopy Data in Toponomics
Found in: IEEE Transactions on Visualization and Computer Graphics
By Steffen Oeltze,Wolfgang Freiler,Reyk Hillert,Helmut Doleisch,Bernhard Preim,Walter Schubert
Issue Date:December 2011
pp. 1882-1891
In Toponomics, the function protein pattern in cells or tissue (the toponome) is imaged and analyzed for applications in toxicology, new drug development and patient-drug-interaction. The most advanced imaging technique is robot-driven multi-parameter fluo...
 
The FLOWLENS: A Focus-and-Context Visualization Approach for Exploration of Blood Flow in Cerebral Aneurysms
Found in: IEEE Transactions on Visualization and Computer Graphics
By Rocco Gasteiger,Mathias Neugebauer,Oliver Beuing,Bernhard Preim
Issue Date:December 2011
pp. 2183-2192
Blood flow and derived data are essential to investigate the initiation and progression of cerebral aneurysms as well as their risk of rupture. An effective visual exploration of several hemodynamic attributes like the wall shear stress (WSS) and the inflo...
 
Sinus Endoscopy - Application of Advanced GPU Volume Rendering for Virtual Endoscopy
Found in: IEEE Transactions on Visualization and Computer Graphics
By Arno Krueger, Christoph Kubisch, Bernhard Preim, Gero Strauss
Issue Date:November 2008
pp. 1491-1498
For difficult cases in endoscopic sinus surgery, a careful planning of the intervention is necessary. Due to the reduced field of view during the intervention, the surgeons have less information about the surrounding structures in the working area compared...
 
Interactive Visual Analysis of Perfusion Data
Found in: IEEE Transactions on Visualization and Computer Graphics
By Steffen Oeltze, Helmut Doleisch, Helwig Hauser, Philipp Muigg, Bernhard Preim
Issue Date:November 2007
pp. 1392-1399
Perfusion data are dynamic medical image data which characterize the regional blood flow in human tissue. These data bear a great potential in medical diagnosis, since diseases can be better distinguished and detected at an earlier stage compared to static...
 
Illustrative Rendering Techniques for Visualization: Future of Visualization or Just Another Technique?
Found in: Visualization Conference, IEEE
By Dirk Bartz, Hans Hagen, Victoria Interrante, Kwan-Liu Ma, Bernhard Preim
Issue Date:October 2005
pp. 120
<p>Illustrative rendering has gone a long way already. While it has been a topic at Eurographics, ACM SIGGRAPH, and other events since the early nineties, it was basically introduced to visualization by Interrante et al. in 1996 [2], and later by Tre...
 
Integration of Measurement Tools in Medical 3d Visualizations
Found in: Visualization Conference, IEEE
By Bernhard Preim, Christian Tietjen, Wolf Spindler, Heinz-Otto Peitgen
Issue Date:November 2002
pp. N/A
We discuss 3d interaction techniques for the quantitative analysis of spatial relations in medical visualizations. We describe the design and implementation of measurement tools to measure distances, angles and volumes in 3d visualizations. The visualizati...
 
Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow Data using Line Predicates
Found in: IEEE Transactions on Visualization and Computer Graphics
By Benjamin Kohler,Rocco Gasteiger,Uta Preim,Holger Theisel,Matthias Gutberlet,Bernhard Preim
Issue Date:December 2013
pp. 2773-2782
Cardiovascular diseases (CVD) are the leading cause of death worldwide. Their initiation and evolution depends strongly on the blood flow characteristics. In recent years, advances in 4D PC-MRI acquisition enable reliable and time-resolved 3D flow measurin...
 
The Medical Exploration Toolkit: An Efficient Support for Visual Computing in Surgical Planning and Training
Found in: IEEE Transactions on Visualization and Computer Graphics
By Konrad Mühler, Christian Tietjen, Felix Ritter, Bernhard Preim
Issue Date:January 2010
pp. 133-146
HASH(0x296d8bc)
 
Survey of the Visual Exploration and Analysis of Perfusion Data
Found in: IEEE Transactions on Visualization and Computer Graphics
By Bernhard Preim, Steffen Oeltze, Matej Mlejnek, Eduard Gröeller, Anja Hennemuth, Sarah Behrens
Issue Date:March 2009
pp. 205-220
Dynamic contrast-enhanced image data (perfusion data) are used to characterize regional tissue perfusion. Perfusion data consist of a sequence of images, acquired after a contrast agent bolus is applied. Perfusion data are used for diagnostic purposes in o...
 
Adaptive Real-Time Grid Generation from 3D Line Scans for fast Visualization and Data Evaluation
Found in: Information Visualisation, International Conference on
By Christian Teutsch, Dirk Berndt, Erik Trostmann, Bernhard Preim
Issue Date:July 2007
pp. 177-184
This paper presents a method for the real-time genera- tion of grids from 3D line scan data for in-line scan pre- views and the evaluation of large point clouds derived from different 3D-scanners. By exploiting the underlying mea- suring principles, we gen...
 
Real-Time Illustration of Vascular Structures
Found in: IEEE Transactions on Visualization and Computer Graphics
By Felix Ritter,Christian Hansen,Volker Dicken,Olaf Konrad,Bernhard Preim,Heinz-Otto Peitgen
Issue Date:September 2006
pp. 877-884
We present real-time vascular visualization methods, which extend on illustrative rendering techniques to particularly accentuate spatial depth and to improve the perceptive separation of important vascular properties such as branching level and supply are...
 
Virtual 3D Puzzles: A New Method for Exploring Geometric Models in VR
Found in: IEEE Computer Graphics and Applications
By Flex Ritter, Thomas Strothotte, Oliver Dresden, Bernhard Preim
Issue Date:September 2001
pp. 11-13
No summary available.
 
Combined Visualization of Wall Thickness and Wall Shear Stress for the Evaluation of Aneurysms
Found in: IEEE Transactions on Visualization and Computer Graphics
By Sylvia Glasser,Kai Lawonn,Bernhard Preim,Thomas Hoffmann,Martin Skalej
Issue Date:February 2015
pp. 1
For an individual rupture risk assessment of aneurysms, the aneurysm’s wall morphology and hemodynamics provide valuable information. Hemodynamic information is usually extracted via computational fluid dynamic (CFD) simulation on a previously extracted 3D...
 
Interactive Visual Analysis of Image-Centric Cohort Study Data
Found in: IEEE Transactions on Visualization and Computer Graphics
By Paul Klemm,Steffen Oeltze-Jafra,Kai Lawonn,Katrin Hegenscheid,Henry Volzke,Bernhard Preim
Issue Date:February 2015
pp. 1
Epidemiological population studies impose information about a set of subjects (a cohort) to characterize disease-specific risk factors. Cohort studies comprise heterogenous variables describing the medical condition as well as demographic and lifestyle fac...
 
Interactive Patient-Specific Vascular Modeling with Sweep Surfaces
Found in: IEEE Transactions on Visualization and Computer Graphics
By Jan Kretschmer,Christian Godenschwager,Bernhard Preim,Marc Stamminger
Issue Date:December 2013
pp. 2828-2837
The precise modeling of vascular structures plays a key role in medical imaging applications, such as diagnosis, therapy planning and blood flow simulations. For the simulation of blood flow in particular, high-precision models are required to produce accu...
 
Can we distinguish between benign and malignant breast tumors in DCE-MRI by studying a tumor's most suspect region only?
Found in: 26th IEEE International Symposium on Computer-Based Medical Systems (CBMS)
By Sylvia Glasser,Uli Niemann,Bernhard Preim,Myra Spiliopoulou
Issue Date:June 2013
pp. 77-82
We investigate the task of breast tumor classification based on dynamic contrast-enhanced magnetic resonance image data (DCE-MRI). Our objective is to study how the formation of regions of similar voxels contributes to distinguishing between benign and mal...
   
Overlay of patient-specific anatomical data for advanced navigation in surgery simulation
Found in: Proceedings of the First International Workshop on Digital Engineering (IWDE '10)
By Bernhard Preim, Georg Rose, Rudiger Mecke, Simon Adler, Zein Salah
Issue Date:June 2010
pp. 52-58
This paper introduces a method to integrate patient specific anatomical image data into our surgery simulation. The image data can be used to plan the next steps within the simulated surgery intervention. The anatomical images are presented with in anatomi...
     
Distance-aware smoothing of surface meshes for surgical planning
Found in: Proceedings of the First International Workshop on Digital Engineering (IWDE '10)
By Bernhard Preim, Ivo Rossling, Peter Hahn, Simon Adler, Tobias Monch
Issue Date:June 2010
pp. 45-51
The evaluation of spatial relationships between anatomic structures is a major task in surgical planning. Surface models generated from medical image data (intensity, binary) are often used for visualization and 3D measurement of extents and distances betw...
     
 1