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Related Concept Videos

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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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Ring-arrayed Forward-viewing Ultrasound Imaging System: A Feasibility Study.

Ryosuke Tsumura1, Doua P Vang2, Nobuhiko Hata3

  • 1Dept. of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.

Proceedings of Spie--The International Society for Optical Engineering
|August 13, 2020
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Summary

This study introduces a novel ring-arrayed forward-viewing ultrasound system to simplify needle insertion. The new device offers intuitive needle guidance, improving ultrasound-guided procedures.

Keywords:
Ring-arrayed ultrasound imagingneedle insertionultrasound-guided intervention

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Area of Science:

  • Medical Imaging
  • Ultrasound Technology
  • Surgical Navigation

Background:

  • Current ultrasound-guided needle insertion demands dual-hand use, separating localization and insertion.
  • This separation leads to procedural complexity and limits guidance reliability due to unknown needle-image positional relationships.
  • Existing navigation systems often require complex external tracking and can suffer from registration inaccuracies.

Purpose of the Study:

  • To develop a simplified and intuitive solution for needle localization and insertion in ultrasound-guided procedures.
  • To address the unmet need for improved reliability and ease of use in conventional ultrasound-guided interventions.
  • To introduce a novel device concept based on ring-arrayed forward-viewing ultrasound imaging.

Main Methods:

  • Proposed a new device concept utilizing ring-arrayed transducers with an open center for needle insertion.
  • Developed a forward-viewing ultrasound imaging system where the needle path is centered without registration.
  • Designed and simulated single-circle ring-array configurations and conducted phantom experiments for target visualization.

Main Results:

  • Successfully visualized point targets using the forward-viewing ultrasound imaging system.
  • Demonstrated the feasibility of the ring-arrayed ultrasound concept through simulations and phantom experiments.
  • Confirmed that the needle path is consistently maintained at the image center, eliminating the need for external registration.

Conclusions:

  • The proposed ring-arrayed forward-viewing ultrasound system has the potential to significantly improve ultrasound-guided needle insertion.
  • This technology offers a simpler and more intuitive approach compared to conventional methods.
  • The system eliminates the need for complex registration, enhancing procedural reliability and ease of use.