Uncertainties in estimates of lesion detectability in diagnostic ultrasound

Citation
Ka. Wear et al., Uncertainties in estimates of lesion detectability in diagnostic ultrasound, J ACOUST SO, 106(2), 1999, pp. 1161-1173
Citations number
21
Categorie Soggetti
Multidisciplinary,"Optics & Acoustics
Journal title
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
ISSN journal
00014966 → ACNP
Volume
106
Issue
2
Year of publication
1999
Pages
1161 - 1173
Database
ISI
SICI code
0001-4966(199908)106:2<1161:UIEOLD>2.0.ZU;2-F
Abstract
Statistical properties of estimates of focal lesion detectability for medic al ultrasonic imaging systems are investigated. Analytic forms for bias and variance of estimates of detectability of a lesion consisting of fully dev eloped speckle embedded within a speckle background are derived. Bias and v ariance of estimates of detectability are investigated using a computer sim ulation and experiments on tissue-mimicking phantoms. This work offers a sy stematic methodology for interpreting measurements on phantoms in order to assess lesion detectability. In addition, it provides useful results which may be used to improve design of phantoms and experiments for imaging-syste m performance assessment. (C) 1999 Acoustical Sociery ofAmerica. [S0001-496 6(99)01208-4].