Using a digital anatomical phantom to optimize an imaging system

Stephan Faris, Don Wilson, Harrison H Barrett, Doug Dougherty, Gene Gindi, Ing Tsung Hsiao

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)

Abstract

We seek to optimize a SPECT brain-imaging system for the task of detecting a small tumor located at random in the brain. To do so, we have created a computer model. The model includes three-dimensional, digital brain phantoms which can be quickly modified to simulate multiple patients. The phantoms are then projected geometrically through multiple pinholes. Our figure of merit is the Hotelling trace, a measure of detectability by the ideal linear observer. The Hotelling trace allows us to quantitatively measure a system's ability to perform a specific task. Because the Hotelling trace requires a large number of samples, we reduce the dimensionality of our images using Laguerre-Gauss functions as channels. To illustrate our method, we compare a system built from small high-resolution cameras to one utilizing larger, low-resolution cameras.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages98-106
Number of pages9
Volume3659
EditionI
StatePublished - 1999
EventProceedings of the 1999 Medical Imaging - Physics of Medical Imaging - San Diego, CA, USA
Duration: Feb 21 1999Feb 23 1999

Other

OtherProceedings of the 1999 Medical Imaging - Physics of Medical Imaging
CitySan Diego, CA, USA
Period2/21/992/23/99

Fingerprint

Imaging systems
brain
Brain
Cameras
cameras
Gauss equation
three dimensional models
pinholes
figure of merit
Tumors
tumors
high resolution

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Faris, S., Wilson, D., Barrett, H. H., Dougherty, D., Gindi, G., & Hsiao, I. T. (1999). Using a digital anatomical phantom to optimize an imaging system. In Proceedings of SPIE - The International Society for Optical Engineering (I ed., Vol. 3659, pp. 98-106). Society of Photo-Optical Instrumentation Engineers.

Using a digital anatomical phantom to optimize an imaging system. / Faris, Stephan; Wilson, Don; Barrett, Harrison H; Dougherty, Doug; Gindi, Gene; Hsiao, Ing Tsung.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3659 I. ed. Society of Photo-Optical Instrumentation Engineers, 1999. p. 98-106.

Research output: Chapter in Book/Report/Conference proceedingChapter

Faris, S, Wilson, D, Barrett, HH, Dougherty, D, Gindi, G & Hsiao, IT 1999, Using a digital anatomical phantom to optimize an imaging system. in Proceedings of SPIE - The International Society for Optical Engineering. I edn, vol. 3659, Society of Photo-Optical Instrumentation Engineers, pp. 98-106, Proceedings of the 1999 Medical Imaging - Physics of Medical Imaging, San Diego, CA, USA, 2/21/99.
Faris S, Wilson D, Barrett HH, Dougherty D, Gindi G, Hsiao IT. Using a digital anatomical phantom to optimize an imaging system. In Proceedings of SPIE - The International Society for Optical Engineering. I ed. Vol. 3659. Society of Photo-Optical Instrumentation Engineers. 1999. p. 98-106
Faris, Stephan ; Wilson, Don ; Barrett, Harrison H ; Dougherty, Doug ; Gindi, Gene ; Hsiao, Ing Tsung. / Using a digital anatomical phantom to optimize an imaging system. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3659 I. ed. Society of Photo-Optical Instrumentation Engineers, 1999. pp. 98-106
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