Dual-concentric transducer with phase apodization for wide depth of field of high-frequency ultrasound imaging

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In general, the length of the depth of field (DOF) is related to the quality of ultrasound B-mode image because the high-performance focusing can be accomplished within the DOF. Typically, under the fixed frequency and aperture size, the length of the DOF can be extended by increasing the focal depth while the intensity at focal point is reduced. This phenomenon is more severe at high frequency ultrasound imaging (HFUI) due to a short wavelength. In this study, we present a dual-concentric transducer combined with phase apodization resulting in the extended DOF maintaining intensity within the DOF range. The performance of the proposed method was numerically demonstrated by Field-II program based on 40 MHz point target and cyst imaging.

Original languageEnglish
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Pages1555-1558
Number of pages4
ISBN (Electronic)9781479970490
DOIs
StatePublished - 20 Oct 2014
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: 3 Sep 20146 Sep 2014

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2014 IEEE International Ultrasonics Symposium, IUS 2014
Country/TerritoryUnited States
CityChicago
Period3/09/146/09/14

Keywords

  • Depth of field
  • Dual-concentric transducer
  • Phase-apodization

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