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Related Experiment Video

Updated: Jun 1, 2026

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
08:08

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

Optimal ultrasonic array focusing in attenuative media.

A Ganguli1, R X Gao, K Liang

  • 1Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, United States.

Ultrasonics
|June 17, 2011
PubMed
Summary

Researchers studied ultrasound focusing efficiency in attenuative media using phased arrays. An optimal frequency was identified for maximizing focusing performance in specific conditions, aiding transducer array design.

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Last Updated: Jun 1, 2026

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
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Published on: October 5, 2018

Area of Science:

  • Acoustics and Wave Physics
  • Biomedical Engineering
  • Materials Science

Background:

  • Ultrasound focusing is crucial for applications like medical imaging and therapy.
  • Attenuative media pose challenges to achieving efficient and precise ultrasound focusing.
  • Phased arrays offer advanced control over ultrasound wave propagation.

Purpose of the Study:

  • To investigate the parametric efficiency of ultrasound focusing in attenuative media.
  • To develop an analytical model for ultrasound wave focusing with point sources.
  • To determine optimal parameters for energy-efficient wave focusing using phased arrays.

Main Methods:

  • Development of an analytical model for ultrasound wave propagation in homogeneous, isotropic, and attenuative fluids.
  • Parametric study of ultrasound focusing efficiency using the developed analytical model.
  • Investigation of the influence of aperture size, focal distance, and f-numbers on focusing performance.

Main Results:

  • An optimal frequency for best focusing performance was identified in attenuative media for specific aperture sizes and focal distances.
  • The study quantified the effect of various f-numbers on focusing performance in attenuative environments.
  • The analytical model provided quantitative insights into energy loss and focusing degradation.

Conclusions:

  • The findings provide critical data for designing and installing phased transducer arrays for efficient ultrasound energy delivery.
  • Understanding the interplay between frequency, aperture, and focal distance is key to optimizing ultrasound focusing in attenuative media.
  • This research contributes to the development of more effective ultrasound-based technologies.