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GPU-based Real-Time Approximation of the Ablation Zone for Radiofrequency Ablation
Dec. 2011 (vol. 17 no. 12)
pp. 1812-1821
ASCII Text
x 
 
Christian Rieder, Tim Kroeger, Christian Schumann, Horst K. Hahn, "GPU-based Real-Time Approximation of the Ablation Zone for Radiofrequency Ablation," IEEE Transactions on Visualization and Computer Graphics, vol. 17, no. 12, pp. 1812-1821, Dec., 2011.
 
 
BibTex
x
 
@article{ 10.1109/TVCG.2011.207,
author = {Christian Rieder and Tim Kroeger and Christian Schumann and Horst K. Hahn},
title = {GPU-based Real-Time Approximation of the Ablation Zone for Radiofrequency Ablation},
journal ={IEEE Transactions on Visualization and Computer Graphics},
volume = {17},
number = {12},
issn = {1077-2626},
year = {2011},
pages = {1812-1821},
doi = {http://doi.ieeecomputersociety.org/10.1109/TVCG.2011.207},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Visualization and Computer Graphics
TI - GPU-based Real-Time Approximation of the Ablation Zone for Radiofrequency Ablation
IS - 12
SN - 1077-2626
SP1812
EP1821
EPD - 1812-1821
A1 - Christian Rieder,
A1 - Tim Kroeger,
A1 - Christian Schumann,
A1 - Horst K. Hahn,
PY - 2011
KW - Radiofrequency ablation
KW - ablation zone visualization
KW - distance field
KW - volume rendering
KW - GPU
KW - interaction.
VL - 17
JA - IEEE Transactions on Visualization and Computer Graphics
ER -
 
Christian Rieder, Fraunhofer MEVIS
Tim Kroeger, Fraunhofer MEVIS / CeVis, University of Bremen
Christian Schumann, Fraunhofer MEVIS
Horst K. Hahn, Fraunhofer MEVIS / Jacobs University Bremen
Percutaneous radiofrequency ablation (RFA) is becoming a standard minimally invasive clinical procedure for the treatment of liver tumors. However, planning the applicator placement such that the malignant tissue is completely destroyed, is a demanding task that requires considerable experience. In this work, we present a fast GPU-based real-time approximation of the ablation zone incorporating the cooling effect of liver vessels. Weighted distance fields of varying RF applicator types are derived from complex numerical simulations to allow a fast estimation of the ablation zone. Furthermore, the heat-sink effect of the cooling blood flow close to the applicator's electrode is estimated by means of a preprocessed thermal equilibrium representation of the liver parenchyma and blood vessels. Utilizing the graphics card, the weighted distance field incorporating the cooling blood flow is calculated using a modular shader framework, which facilitates the real-time visualization of the ablation zone in projected slice views and in volume rendering. The proposed methods are integrated in our software assistant prototype for planning RFA therapy. The software allows the physician to interactively place virtual RF applicator models. The real-time visualization of the corresponding approximated ablation zone facilitates interactive evaluation of the tumor coverage in order to optimize the applicator's placement such that all cancer cells are destroyed by the ablation.

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Index Terms:
Radiofrequency ablation, ablation zone visualization, distance field, volume rendering, GPU, interaction.
Citation:
Christian Rieder, Tim Kroeger, Christian Schumann, Horst K. Hahn, "GPU-based Real-Time Approximation of the Ablation Zone for Radiofrequency Ablation," IEEE Transactions on Visualization and Computer Graphics, vol. 17, no. 12, pp. 1812-1821, Dec. 2011, doi:10.1109/TVCG.2011.207
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