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.
journal_name
Med Physjournal_title
Medical physicsauthors
Hall TJ,Insana MF,Soller NM,Harrison LAdoi
10.1118/1.597147subject
Has Abstractpub_date
1993-01-01 00:00:00pages
117-27issue
1eissn
0094-2405issn
2473-4209journal_volume
20pub_type
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