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Evaluation of a Bricked Volume Layout for a Medical Workstation based on Java

Peter Kohlmann, Stefan Bruckner, Armin Kanitsar, M. Eduard Gröller

JOURNAL ARTICLE: Journal of WSCG, vol. 15, no. 1-3, pp. 83–90, 2007.

Abstract

Volumes acquired for medical examination purposes are constantly increasing in size. For this reason, the computer’s memory is the limiting factor for visualizing the data. Bricking is a well-known concept used for rendering large data sets. The volume data is subdivided into smaller blocks to achieve better memory utilization. Until now, the vast majority of medical workstations use a linear volume layout. We implemented a bricked volume layout for such a workstation based on Java as required by our collaborative company partner to evaluate different common access patterns to the volume data. For rendering, we were mainly interested to see how the performance will differ from the traditional linear volume layout if we generate images of arbitrarily oriented slices via Multi-Planar Reformatting (MPR). Furthermore, we tested access patterns which are crucial for segmentation issues like a random access to data values and a simulated region growing. Our goal was to find out if it makes sense to change the volume layout of a medical workstation to benefit from bricking. We were also interested to identify the tasks where problems might occur if bricking is applied. Overall, our results show that it is feasible to use a bricked volume layout in the stringent context of a medical workstation implemented in Java.

Published

Journal of WSCG

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BibTeX

@ARTICLE{Kohlmann-2007-EBV,
  author = {Peter Kohlmann and Stefan Bruckner and Armin Kanitsar and M. Eduard
	Gr{\"o}ller},
  title = {Evaluation of a Bricked Volume Layout for a Medical Workstation based
	on Java},
  journal = {Journal of WSCG},
  year = {2007},
  volume = {15},
  pages = {83--90},
  number = {1-3},
  month = jan,
  abstract = {Volumes acquired for medical examination purposes are constantly increasing
	in size. For this reason, the computer’s memory is the limiting
	factor for visualizing the data. Bricking is a well-known concept
	used for rendering large data sets. The volume data is subdivided
	into smaller blocks to achieve better memory utilization. Until now,
	the vast majority of medical workstations use a linear volume layout.
	We implemented a bricked volume layout for such a workstation based
	on Java as required by our collaborative company partner to evaluate
	different common access patterns to the volume data. For rendering,
	we were mainly interested to see how the performance will differ
	from the traditional linear volume layout if we generate images of
	arbitrarily oriented slices via Multi-Planar Reformatting (MPR).
	Furthermore, we tested access patterns which are crucial for segmentation
	issues like a random access to data values and a simulated region
	growing. Our goal was to find out if it makes sense to change the
	volume layout of a medical workstation to benefit from bricking.
	We were also interested to identify the tasks where problems might
	occur if bricking is applied. Overall, our results show that it is
	feasible to use a bricked volume layout in the stringent context
	of a medical workstation implemented in Java.},
  event = {WSCG 2007},
  issn = {1213-6972},
  keywords = {MPR, bricked volume layout, medical visualization, medical workstation},
  location = {Plzen, Czech Republic},
  url = {http://www.cg.tuwien.ac.at/research/publications/2007/Kohlmann-2007-EBV/}
}






 Last Modified: Stefan Bruckner, 2014-09-22