Derivation of sonograph quality parameters by the use of point spread function analysis

  • Dolezal L
  • Mazura J
  • Tesarik J
 et al. 
  • 2

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.

Abstract

A measuring system evaluating a Point Spread Function generated in an ultrasonographic image by scanning a spherical target was developed. The target is moved in measuring bath filled by water over scanned volume via 3D computer controlled positioning system. A video signal obtained is converted to digital form and analyzed by original software to derive various objective parameters of the imager as follows: Focal areas in both the azimuth and the elevation directions, Ultrasound scanning lines visualisation, Manufacturer preloaded TGC, Width of the scanning plane, Side lobe levels and Amplification uniformity in the azimuth direction. The method was verified by testing 18 different equipments in 282 measurements. Samples of particular measurement results in form of graphical outputs are included. Medical and physiological impacts of this approach are discussed.

Author-supplied keywords

  • *Image Enhancement
  • *Image Interpretation, Computer-Assisted
  • *Imaging, Three-Dimensional
  • *Signal Processing, Computer-Assisted
  • Phantoms, Imaging
  • Reproducibility of Results
  • Software
  • Ultrasonography/instrumentation/*methods

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • L Dolezal

  • J Mazura

  • J Tesarik

  • H Kolarova

  • D Korpas

  • S Binder

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free