Effect of lossy networks on user perception of radiological images

Yasser H. Alsafadi, Elizabeth A Krupinski, Ralph Martinez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Rigid requirements of perfect network transfer (i.e., without any loss of data) may be delaying the deployment of picture archiving and communication systems (PACS) and teleradiology. By using a clever and fast packet encoding mechanism to transmit images and then using a four- neighbor interpolation recovery scheme to 'fill in' lost pixels, some packet loss during network transmission may be affordable without affecting the diagnostic quality of the image or influencing the radiologist's diagnostic performance. To test this, radiologists viewed mammographic images with 0%, 15% and 25% transmission loss and reported on the presence or absence of microcalcifications. Observer performance was measured using receiver operating characteristic (ROC) techniques. Diagnostic performance in the 15% loss condition did not differ significantly from performance in the 0% loss condition. 25% transmission loss resulted in a decrease in performance. Thus, up to 15% loss can be tolerated without affecting diagnostic performance. The utilization of loss/performance curves may allow flexibility in network transmission performance requirements, which could ease PACS and teleradiology implementation using current technology.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsYongmin Kim
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Pages408-419
Number of pages12
Volume1897
ISBN (Print)0819411299
Publication statusPublished - 1993
EventMedical Imaging 1993: Image Capture, Formatting, and Display - Newport Beach, CA, USA
Duration: Jan 17 1993Jan 22 1993

Other

OtherMedical Imaging 1993: Image Capture, Formatting, and Display
CityNewport Beach, CA, USA
Period1/17/931/22/93

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Alsafadi, Y. H., Krupinski, E. A., & Martinez, R. (1993). Effect of lossy networks on user perception of radiological images. In Y. Kim (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1897, pp. 408-419). Publ by Society of Photo-Optical Instrumentation Engineers.