Non-invasive tissue parameter estimation with dual-mode ultrasound arrays

Alyona Haritonova, Elias Wilken-Resman, Dalong Liu, Emad Ebbini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Objective of this study was to noninvasively extract quantitative estimates of heart tissue absorption before and after lesion formation. To extract tissue absorption, ultrasound temperature maps were reconstructed from single transmit focus (STF) images acquired with a 3.5MHz Dual-Mode Ultrasound Array (DMUA). Initial heating rate is estimated before and after therapeutic lesion formation through a delivery of a subtherapeutic intensity shot in ex vivo bovine heart tissue. Changes in heating rate are documented for a subset of five subtherapeutic shot intensities. Additionally, repeatability is demonstrated for before and after measurement of the initial heating rate. Careful gross examination of tissue was performed for every location where an absorption measurement was made.

Original languageEnglish (US)
Title of host publicationProceedings from the 14th International Symposium on Therapeutic Ultrasound, ISTU 2014
EditorsJ. Brian Fowlkes, Vasant A. Salgaonkar
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414891
DOIs
StatePublished - Mar 17 2017
Event14th International Symposium on Therapeutic Ultrasound, ISTU 2014 - Las Vegas, United States
Duration: Apr 2 2014Apr 5 2014

Publication series

NameAIP Conference Proceedings
Volume1821
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other14th International Symposium on Therapeutic Ultrasound, ISTU 2014
CountryUnited States
CityLas Vegas
Period4/2/144/5/14

Keywords

  • Absorption
  • Cardiac
  • DMUA
  • HIFU
  • Properties
  • Thermocouple
  • Tissue

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