Affordable Access

A concave annular array design, based on phasor summation--Part II: Beam profiles and resultant images by B-scan and synthetic focus methods.

Authors
  • Yuan, W Q
  • Johnson, S A
  • Berggren, M J
  • Eidens, R S
Type
Published Article
Journal
Ultrasonic imaging
Publication Date
Oct 01, 1988
Volume
10
Issue
4
Pages
287–297
Identifiers
PMID: 3074552
Source
Medline
License
Unknown

Abstract

A brief review of the synthetic focusing method is given. The theoretical limit of resolution that may be achieved with the synthetic focusing methods is demonstrated using experimental results on a thin thread obtained with an annular array whose design was given in Part I. The advantage of large aperture arrays is illustrated by an in vitro reflection image of a dog artery, made with this array, that has at least four times the spatial resolution of present clinical B-scanners operating in the same frequency range.

Report this publication

Statistics

Seen <100 times