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Related Experiment Videos

An electronic device for needle placement during sonographically guided percutaneous intervention.

M H Howard1, R C Nelson, E K Paulson

  • 1Department of Radiology, Duke University Medical Center, Erwin Rd, Box 3808, Durham, NC 27710.

Radiology
|March 7, 2001
PubMed
Summary

A new electronic device improves needle guidance for ultrasound-guided procedures. Testing showed it enhanced accuracy compared to freehand methods in both phantom models and patient studies.

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Area of Science:

  • Medical Devices
  • Ultrasound Imaging
  • Interventional Radiology

Background:

  • Percutaneous interventions often rely on precise needle placement.
  • Ultrasound guidance is commonly used but can be challenging for accuracy.
  • Existing needle guides and freehand techniques have limitations.

Purpose of the Study:

  • To evaluate the efficacy of an electronic device for guiding needle placement.
  • To compare the device's accuracy against conventional methods in sonographically directed percutaneous interventions.

Main Methods:

  • The electronic needle guidance device was tested using a phantom model.
  • Phantom accuracy was assessed with the needle guide alone, the device with the needle guide, and freehand with the device.
  • The device was then tested in a patient cohort undergoing sonographically directed percutaneous interventions.

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Main Results:

  • In phantom studies, the device (with or without needle guide) and needle guide alone showed superior targeting accuracy (P <.001) compared to freehand alone.
  • In 43 patients, the electronic device functioned effectively in 34 (79%) cases.
  • The device demonstrated good performance in real-world clinical application.

Conclusions:

  • The electronic device shows promise for improving needle placement accuracy in ultrasound-guided procedures.
  • It offers a viable alternative or adjunct to existing techniques, enhancing precision.
  • Further studies may explore its broader clinical utility and impact on procedural outcomes.