Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Space-time encoding for high frame rate ultrasound imaging.

Thanassis X Misaridis1, Jørgen A Jensen

  • 1Center for Fast Ultrasound Imaging, Orsted-DTU, Technical University of Denmark, Lyngby. tmi@oersted.dtu.dk

Ultrasonics
|August 6, 2002
PubMed
Summary

This study introduces spatio-temporal encoding for sparse synthetic transmit aperture (STA) ultrasound imaging, enhancing frame rates and signal-to-noise ratio (SNR) while reducing motion artifacts for clearer images.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Accurate prediction of transmission through a lensed row-column addressed array.

The Journal of the Acoustical Society of America·2022
Same author

Surveillance for hemodialysis access stenosis: usefulness of ultrasound vector volume flow.

The journal of vascular access·2016
Same author

Phased-array vector velocity estimation using transverse oscillations.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control·2012
Same author

Internal strain estimation for quantification of human heel pad elastic modulus: A phantom study.

Ultrasonics·2012
Same author

A method for direct localized sound speed estimates using registered virtual detectors.

Ultrasonic imaging·2012
Same author

New technology - demonstration of a vector velocity technique.

Ultraschall in der Medizin (Stuttgart, Germany : 1980)·2011

Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Signal Processing

Background:

  • Sparse Synthetic Transmit Aperture (STA) beamforming significantly increases ultrasound frame rates.
  • However, STA methods suffer from low signal-to-noise ratio (SNR) and motion artifacts, degrading image quality.

Purpose of the Study:

  • To develop a spatio-temporal encoding technique for STA imaging to improve SNR and reduce motion artifacts.
  • To enhance frame rates and image quality in ultrasound imaging.

Main Methods:

  • Utilized simultaneous transmission of two quasi-orthogonal tapered linear FM signals (up- and down-chirps).
  • Employed cross-correlation with coded signals, spatial decoding, and beamforming for each code.
  • Implemented Hadamard spatial encoding and temporal encoding for enhanced signal processing.

Related Experiment Videos

Main Results:

  • Achieved a doubled frame rate compared to previous STA systems.
  • Demonstrated improved SNR, reaching levels comparable to phased-array imaging.
  • Reduced motion artifacts by enabling dynamic focusing with fewer emissions.

Conclusions:

  • The proposed spatio-temporal encoding effectively addresses SNR and motion artifact limitations in STA ultrasound imaging.
  • This technique offers a significant advancement for high-frame-rate ultrasound with improved image quality.
  • The method shows promise for dynamic and clearer ultrasound visualizations.