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Channelized hotelling observers for the detection of 2D signals in 3D simulated images

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Abstract
Current clinical practice is increasingly moving in the direction of volumetric imaging. However, model observers for 3D images have been little explored so far. This study is investigating the task of detecting 2D signals in multi-slice simulated image data. We propose a novel design of a multi-slice model observer. To evaluate it, we compare three different model designs of the channelized Hotelling observer (CHO), two multi-slice and one single-slice model. The multi-slice models are built as a sequence of a 2D CHO and 1D HO, where the CHO is used to calculate a vector of metrics for each slice in the planar view and the HO is used to calculate the final scalar statistic of the model. The single-slice model is a 2D CHO applied on the location of the lesion. Our results show that the multi-slice models outperform the single-slice one, and here the new model surpasses the existing one.
Keywords
PERFORMANCE, NOISE, MODEL, Signal detection, Medical decision-making, Observers, Image classification

Citation

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Chicago
Platisa, Ljiljana, Bart Goossens, Ewout Vansteenkiste, Aldo Badano, and Wilfried Philips. 2009. “Channelized Hotelling Observers for the Detection of 2D Signals in 3D Simulated Images.” In 2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6, 1761–1764. New York, NY, USA: IEEE.
APA
Platisa, L., Goossens, B., Vansteenkiste, E., Badano, A., & Philips, W. (2009). Channelized hotelling observers for the detection of 2D signals in 3D simulated images. 2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6 (pp. 1761–1764). Presented at the 16th IEEE International conference on Image Processing (ICIP 2009), New York, NY, USA: IEEE.
Vancouver
1.
Platisa L, Goossens B, Vansteenkiste E, Badano A, Philips W. Channelized hotelling observers for the detection of 2D signals in 3D simulated images. 2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6. New York, NY, USA: IEEE; 2009. p. 1761–4.
MLA
Platisa, Ljiljana, Bart Goossens, Ewout Vansteenkiste, et al. “Channelized Hotelling Observers for the Detection of 2D Signals in 3D Simulated Images.” 2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6. New York, NY, USA: IEEE, 2009. 1761–1764. Print.
@inproceedings{828904,
  abstract     = {Current clinical practice is increasingly moving in the direction of volumetric imaging. However, model observers for 3D images have been little explored so far. This study is investigating the task of detecting 2D signals in multi-slice simulated image data. We propose a novel design of a multi-slice model observer. To evaluate it, we compare three different model designs of the channelized Hotelling observer (CHO), two multi-slice and one single-slice model. The multi-slice models are built as a sequence of a 2D CHO and 1D HO, where the CHO is used to calculate a vector of metrics for each slice in the planar view and the HO is used to calculate the final scalar statistic of the model. The single-slice model is a 2D CHO applied on the location of the lesion. Our results show that the multi-slice models outperform the single-slice one, and here the new model surpasses the existing one.},
  author       = {Platisa, Ljiljana and Goossens, Bart and Vansteenkiste, Ewout and Badano, Aldo and Philips, Wilfried},
  booktitle    = {2009 16TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1-6},
  isbn         = {9781424456536},
  issn         = {1522-4880},
  keyword      = {PERFORMANCE,NOISE,MODEL,Signal detection,Medical decision-making,Observers,Image classification},
  language     = {eng},
  location     = {Cairo, Egypt},
  pages        = {1761--1764},
  publisher    = {IEEE},
  title        = {Channelized hotelling observers for the detection of 2D signals in 3D simulated images},
  url          = {http://dx.doi.org/10.1109/ICIP.2009.5414558},
  year         = {2009},
}

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