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Related Concept Videos

Ultrasonography01:17

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: Ultrasonography01:24

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...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...

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Related Experiment Video

Updated: Jul 7, 2026

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
09:01

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques

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A new method for gain correction in ultrasonic imaging.

B Richard1

  • 1Lab. de Biophys. Fac., Cochin, Paris.

IEEE Transactions on Medical Imaging
|January 1, 1991
PubMed
Summary

A new system provides depth information for ultrasonic image pixels simultaneously with pixel output. This improves ease-of-use and image quality optimization through post-gain correction capabilities in clinical settings.

Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Digital Signal Processing

Background:

  • Scan conversion in ultrasound imaging requires accurate pixel depth information.
  • Traditional methods can be complex and slow to adapt to user modifications.
  • Optimizing ultrasound image quality often involves post-processing adjustments.

Purpose of the Study:

  • To propose a novel system for simultaneous depth information acquisition in ultrasound imaging.
  • To introduce a simplified and faster gain memory system.
  • To evaluate the clinical utility and image quality improvements of the proposed system.

Main Methods:

  • Implementing a system that provides pixel depth concurrently with pixel output from the digital scan processor.
  • Utilizing a line memory for gain memory, reducing circuitry and enabling faster updates.

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  • Integrating post-gain correction capabilities for user-defined adjustments.

    • Main Results:

    • The proposed system successfully provides simultaneous depth information for ultrasonic image pixels.
    • The gain memory system, using a line memory, demonstrated reduced complexity and faster update rates.
    • Clinical application revealed significant improvements in ease-of-use and image quality optimization via post-gain correction.

    Conclusions:

    • The developed system enhances ultrasound scan conversion by providing simultaneous depth data.
    • The simplified gain memory offers a more efficient and responsive user experience.
    • Post-gain correction capability represents a valuable advancement for routine clinical ultrasound imaging.