Ultrasound contrast-detail analysis: A preliminary study in human observer performance

Timothy J. Hall, F. Michael Insana, Nannette M. Soller, Linda A. Harrison

Research output: Contribution to journalArticlepeer-review

Abstract

Results of a human observer performance study using a new ultrasound contrast-detail (CD) phantom are reported. The new phantom allows estimates of the fundamental statistical uncertainties involved in CD analysis. Results of these experiments show that observers generally considered to be 'trained' require experience at the specific task of low-contrast target detection under signal known exactly (SKE) conditions, and that observers require an orientation period at the beginning of each observation session to obtain stable responses. The results obtained in this study can be used to estimate the number of independent images, observers, and repeat observation sessions required for a desired uncertainty in CD curves, and show that 10% fractional standard deviations are obtainable with modest observer effort.

Original languageEnglish (US)
Pages (from-to)117-127
Number of pages11
JournalMedical Physics
Volume20
Issue number1
DOIs
StatePublished - Jan 1993

Keywords

  • contrast-detail
  • observer performance
  • phantoms
  • system evaluation
  • ultrasound

ASJC Scopus subject areas

  • Biophysics

Fingerprint Dive into the research topics of 'Ultrasound contrast-detail analysis: A preliminary study in human observer performance'. Together they form a unique fingerprint.

Cite this