Ghent University Academic Bibliography

Advanced

Optimization of medical imaging display systems: using the channelized Hotelling observer for detecting lung nodules: experimental study

Ljiljana Platisa UGent, Ewout Vansteenkiste UGent, Bart Goossens UGent, Cédric Marchessoux, Tom Kimpe and Wilfried Philips UGent (2009) PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. 7263. p.72630P-1-72630P-11
abstract
Medical-imaging systems are designed to aid medical specialists in a specific task. Therefore, the physical parameters of a system need to optimize the task performance of a human observer. This requires measurements of human performance in a given task during the system optimization. Typically, psychophysical studies are conducted for this purpose. Numerical observer models have been successfully used to predict human performance in several detection tasks. Especially, the task of signal detection using a channelized Hotelling observer (CHO) in simulated images has been widely explored. However, there are few studies done for clinically acquired images that also contain anatomic noise. In this paper, we investigate the performance of a CHO in the task of detecting lung nodules in real radiographic images of the chest. To evaluate variability introduced by the limited available data, we employ a commonly used study of a multi-reader multi-case (MRMC) scenario. It accounts for both case and reader variability. Finally, we use the "one-shot" methods to estimate the MRMC variance of the area under the ROC curve (AUC). The obtained AUC compares well to those reported for human observer study on a similar data set. Furthermore, the "one-shot" analysis implies a fairly consistent performance of the CHO with the variance of AUC below 0.002. This indicates promising potential for numerical observers in optimization of medical imaging displays and encourages further investigation on the subject.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
SPECT, PERFORMANCE, MODEL, Model Observers, Image Display, Observer Performance Evaluation
in
PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING
Proc. SPIE Int. Soc. Opt. Eng.
editor
Berkman Sahiner and David Manning
volume
7263
issue title
Medical Imaging 2009 : Image Perception, Observer Performance, and Technology Assessment
article number
72630P
pages
11 pages
publisher
SPIE, the International Society for Optical Engineering
place of publication
Bellingham, WA, USA
conference name
Conference on Medical Imaging - Image Perception, Observer Performance, and Technology Assessment
conference location
Lake Buena Vista, FL, USA
conference start
2009-02-11
conference end
2009-02-12
Web of Science type
Proceedings Paper
Web of Science id
000306174400024
ISSN
0277-786X
ISBN
9780819475145
DOI
10.1117/12.812510
language
English
UGent publication?
yes
classification
P1
id
623673
handle
http://hdl.handle.net/1854/LU-623673
date created
2009-05-11 16:54:56
date last changed
2017-01-02 09:52:38
@inproceedings{623673,
  abstract     = {Medical-imaging systems are designed to aid medical specialists in a specific task. Therefore, the physical parameters of a system need to optimize the task performance of a human observer. This requires measurements of human performance in a given task during the system optimization. Typically, psychophysical studies are conducted for this purpose. Numerical observer models have been successfully used to predict human performance in several detection tasks. Especially, the task of signal detection using a channelized Hotelling observer (CHO) in simulated images has been widely explored. However, there are few studies done for clinically acquired images that also contain anatomic noise. In this paper, we investigate the performance of a CHO in the task of detecting lung nodules in real radiographic images of the chest. To evaluate variability introduced by the limited available data, we employ a commonly used study of a multi-reader multi-case (MRMC) scenario. It accounts for both case and reader variability. Finally, we use the {\textacutedbl}one-shot{\textacutedbl} methods to estimate the MRMC variance of the area under the ROC curve (AUC). The obtained AUC compares well to those reported for human observer study on a similar data set. Furthermore, the {\textacutedbl}one-shot{\textacutedbl} analysis implies a fairly consistent performance of the CHO with the variance of AUC below 0.002. This indicates promising potential for numerical observers in optimization of medical imaging displays and encourages further investigation on the subject.},
  articleno    = {72630P},
  author       = {Platisa, Ljiljana and Vansteenkiste, Ewout and Goossens, Bart and Marchessoux, C{\'e}dric and Kimpe, Tom and Philips, Wilfried},
  booktitle    = {PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING},
  editor       = {Sahiner, Berkman and Manning, David},
  isbn         = {9780819475145},
  issn         = {0277-786X},
  keyword      = {SPECT,PERFORMANCE,MODEL,Model Observers,Image Display,Observer Performance Evaluation},
  language     = {eng},
  location     = {Lake Buena Vista, FL, USA},
  pages        = {72630P:72630P-1--72630P:72630P-11},
  publisher    = {SPIE, the International Society for Optical Engineering},
  title        = {Optimization of medical imaging display systems: using the channelized Hotelling observer for detecting lung nodules: experimental study},
  url          = {http://dx.doi.org/10.1117/12.812510},
  volume       = {7263},
  year         = {2009},
}

Chicago
Platisa, Ljiljana, Ewout Vansteenkiste, Bart Goossens, Cédric Marchessoux, Tom Kimpe, and Wilfried Philips. 2009. “Optimization of Medical Imaging Display Systems: Using the Channelized Hotelling Observer for Detecting Lung Nodules: Experimental Study.” In Proceedings of Spie - the International Society for Optical Engineering, ed. Berkman Sahiner and David Manning, 7263:72630P–1–72630P–11. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
APA
Platisa, L., Vansteenkiste, E., Goossens, B., Marchessoux, C., Kimpe, T., & Philips, W. (2009). Optimization of medical imaging display systems: using the channelized Hotelling observer for detecting lung nodules: experimental study. In B. Sahiner & D. Manning (Eds.), PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING (Vol. 7263, pp. 72630P–1–72630P–11). Presented at the Conference on Medical Imaging - Image Perception, Observer Performance, and Technology Assessment, Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
Vancouver
1.
Platisa L, Vansteenkiste E, Goossens B, Marchessoux C, Kimpe T, Philips W. Optimization of medical imaging display systems: using the channelized Hotelling observer for detecting lung nodules: experimental study. In: Sahiner B, Manning D, editors. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering; 2009. p. 72630P–1–72630P–11.
MLA
Platisa, Ljiljana, Ewout Vansteenkiste, Bart Goossens, et al. “Optimization of Medical Imaging Display Systems: Using the Channelized Hotelling Observer for Detecting Lung Nodules: Experimental Study.” Proceedings of Spie - the International Society for Optical Engineering. Ed. Berkman Sahiner & David Manning. Vol. 7263. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering, 2009. 72630P–1–72630P–11. Print.