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Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...

Imaging Studies II: Ultrasonography

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...

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Related Experiment Video

Updated: Jul 7, 2026

Three-dimensional Optical-resolution Photoacoustic Microscopy

Three-dimensional Optical-resolution Photoacoustic Microscopy

Published on: May 3, 2011

Subaperture processing for ultrasonic imaging.

M Karaman¹, M O'Donnell

¹Department and Biomedical Engineering Department, University of Michigan, Ann Arbor, MI 48109-2122, USA. karaman@baskent.edu.tr

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|February 5, 2008

Summary

This summary is machine-generated.

Ultrasonic subaperture processing enhances imaging resolution and reduces motion artifacts. This advanced technique improves real-time ultrasound imaging by optimizing data acquisition and signal processing for clearer diagnostic images.

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Area of Science:

Ultrasound imaging
Medical imaging technology
Signal processing

Background:

Traditional ultrasound imaging faces limitations in resolution and susceptibility to motion artifacts.
Subaperture processing offers a potential solution to enhance image quality.

Purpose of the Study:

To present and evaluate a novel ultrasonic subaperture processing method using aperture synthesis and beam space interpolation.
To assess the efficiency of this method for real-time imaging and motion artifact reduction.

Main Methods:

Implemented aperture synthesis and beam space interpolation for ultrasonic subaperture processing.
Optimized the number of beam lines based on spatial sampling criteria for each subaperture.
Utilized electronic multiplexing and digital interpolation to reconstruct high-resolution sector images.
Tested the method on experimental radiofrequency data from two phantoms using a 3.5 MHz, 128-element transducer array.

Main Results:

The proposed subaperture processing technique successfully reduced the number of required firings for data acquisition.
Achieved high-resolution sector images through the combination of interpolated beam lines.
Demonstrated very low susceptibility to motion artifacts in the acquired images.

Conclusions:

Ultrasonic subaperture processing with aperture synthesis and beam space interpolation is an effective method for improving ultrasound image quality.
The technique enables real-time imaging with significantly reduced motion artifacts, enhancing diagnostic capabilities.
This approach holds promise for advancing ultrasound diagnostic applications.