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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.
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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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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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Introduction:
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Related Experiment Video

Updated: Sep 8, 2025

An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
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Ultrasound Image Quality Assessment for Novel E4D Interventional Imaging Probe.

Sydney Jupitz1, James Zagzebski1, Sander Dekker2

  • 1Medical Physics, University of Wisconsin-Madison, Madison, WI, USA.

Ultrasound in Medicine & Biology
|June 21, 2025
PubMed
Summary

A new magnetic resonance-compatible ultrasound probe (E4DL) shows comparable image quality to commercial probes. This novel 4D linear probe may enhance image guidance during medical interventions.

Keywords:
Image qualityImage-guidanceMotion managementUltrasound

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Area of Science:

  • Medical imaging
  • Ultrasound technology
  • Interventional radiology

Background:

  • Ultrasound guidance is crucial for interventional procedures, often enhanced by correlating images with CT, MRI, or X-ray.
  • Real-time imaging is vital for accurate guidance and motion management.

Purpose of the Study:

  • To characterize the image quality of a novel magnetic resonance-compatible, real-time 4D linear ultrasound probe (E4DL).
  • To compare the performance of the E4DL prototype transducer against two commercial ultrasound probes (4V cardiac and C1-6 curvilinear).

Main Methods:

  • Image quality was assessed using depth of penetration (DOP), lateral resolution, and lesion detectability (LSNR) in phantoms.
  • Measurements were performed on GE Vivid E95 and LOGIQ E10 ultrasound scanners.
  • In vivo liver images were acquired for further evaluation.

Main Results:

  • The E4DL probe achieved a DOP of 147.0 ± 1.4 mm, comparable to the 4V probe (164.8 ± 3.2 mm) and less than the C1-6 probe (180+ mm).
  • Lateral resolution was similar across all probes up to 125 mm.
  • The E4DL probe demonstrated superior lesion signal-to-noise ratio (LSNR) near its focal zone (35 mm) compared to the 4V (40 mm) and C1-6 (50 mm) probes.

Conclusions:

  • The E4DL probe exhibits image performance metrics comparable to existing commercial ultrasound probes.
  • Its design and image quality suggest potential utility for image guidance and motion management in medical interventions.