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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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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: Mar 30, 2026

A Modified Sonographic Algorithm for Image Acquisition in Life-Threatening Emergencies in the Critically Ill Newborn
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Intelligent navigation to improve obstetrical sonography.

Lami Yeo1,2,3,4, Roberto Romero5,6,7,8,9

  • 1Perinatology Research Branch, NICHD/NIH/DHHS, Bethesda, MD. lyeo@med.wayne.edu.

Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology
|November 4, 2015
PubMed
Summary
This summary is machine-generated.

Intelligent navigation in volumetric sonography automates the retrieval and display of diagnostic planes, reducing operator dependency and time. This technology enhances obstetrical sonography by providing consistent, standardized images regardless of fetal position.

Keywords:
3D4DSTICVIS-Assistance®Virtual Intelligent Sonographer Assistancefetusmanual navigationspatiotemporal image correlationthree-dimensionalultrasound

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Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Obstetrical Sonography

Background:

  • Manual navigation is the standard for acquiring information from 2D and volumetric sonography, requiring extensive operator training.
  • Volumetric sonography, while rapid in acquisition, presents challenges in retrieving and displaying diagnostic planes.
  • Current methods are operator-dependent, leading to variability and time-consuming assessments in fetal anatomy evaluation.

Purpose of the Study:

  • To introduce and define 'intelligent navigation' as a novel method for interrogating volumetric ultrasound datasets.
  • To present Virtual Intelligent Sonographer Assistance (VIS-Assistance®) as a tool for operator-independent sonographic navigation.
  • To highlight the advantages of intelligent navigation over manual methods in volumetric sonography.

Main Methods:

  • Operator-independent algorithms identify key anatomical landmarks to generate geometrical reconstructions.
  • The system automatically navigates, extracts, and displays specific diagnostic planes from volume datasets.
  • VIS-Assistance® enables standardized display of fetal anatomy and diagnostic planes, irrespective of initial orientation or fetal position.

Main Results:

  • Intelligent navigation significantly reduces the time for both acquisition and retrieval/display of diagnostic planes.
  • The technology ensures consistent and standardized display of anatomical structures and diagnostic planes.
  • Operator dependency is decreased, leading to a more user-friendly, fast, and consistent sonographic imaging process.

Conclusions:

  • Intelligent navigation offers a user-friendly, efficient, and consistent approach to volumetric sonography.
  • VIS-Assistance® technology improves obstetrical sonography by automating plane retrieval and standardization.
  • This method has the potential to enhance diagnostic accuracy and accessibility through features like telemedicine transmission.