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Proceedings Paper

Ultrasound quality assurance phantoms and characterization for high-frequency transducers
Author(s): Emanuel J. Gottlieb; WoHsing Chen; Timothy A. Ritter; K. Kirk Shung
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Paper Abstract

Ultrasound phantoms are used as a quality assurance mechanism for assessing the imaging performance of ultrasound transducers. Several phantoms have been fabricated specifically for imaging by means of high frequency transducers with a center frequency ranging from 20 to 100 MHz. To quantify the transducers imaging performance the spatial resolution, dead zone, linear fidelity, depth of penetration and image uniformity are measured from ultrasound images created by scanning specially designed phantoms. Eight micron diameter tungsten (high acoustic reflectivity and diameter size less than (lambda) /2) wire targets are used for all the phantoms. Transducer characterization consists of a standard pulse echo analysis and insertion loss measurement for each transducer. Imaging of quality assurance phantoms and transducer characterization provide a practical means for evaluating the performance of high frequency transducers.

Paper Details

Date Published: 11 April 2002
PDF: 6 pages
Proc. SPIE 4687, Medical Imaging 2002: Ultrasonic Imaging and Signal Processing, (11 April 2002); doi: 10.1117/12.462180
Show Author Affiliations
Emanuel J. Gottlieb, The Pennsylvania State Univ. (United States)
WoHsing Chen, The Pennsylvania State Univ. (United States)
Timothy A. Ritter, The Pennsylvania State Univ. (United States)
K. Kirk Shung, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 4687:
Medical Imaging 2002: Ultrasonic Imaging and Signal Processing
Michael F. Insana; William F. Walker, Editor(s)

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