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Origami Lesion-Targeting Device for CT-Guided Interventions.

Austin J Taylor1, Sheng Xu, Bradford J Wood

  • 1School of Electrical and Computer Engineering, University of Georgia, Athens, GA 30602, USA.

Journal of Imaging
|August 30, 2021
PubMed
Summary

This study introduces a low-cost, disposable lesion-targeting device for CT-guided interventions. The device achieved a mean targeting error of 2.53 mm, enhancing safety and precision in minimally invasive therapies.

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Area of Science:

  • Medical Imaging
  • Surgical Devices
  • Interventional Radiology

Background:

  • CT-guided interventions require precise targeting for effective and safe procedures.
  • Existing methods for lesion targeting can be complex or pose risks of tissue damage.
  • There is a need for cost-effective, user-friendly targeting devices in image-guided therapy.

Purpose of the Study:

  • To preliminarily evaluate a novel, low-cost lesion-targeting device for CT-guided interventions.
  • To assess the accuracy and feasibility of the device in targeting lesions for needle insertion.
  • To identify the advantages of the device in minimally invasive image-guided therapy.

Main Methods:

  • A lesion-targeting device was fabricated using laser-cut medical paperboard and 3D-printed radiocontrast grids.
Keywords:
3D printingcomputed tomographyorigamipercutaneous biopsyradiologic phantom

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  • The device was evaluated using an abdominal imaging phantom under CT guidance.
  • Targeting accuracy for needle insertion was assessed in multiple trials.

    • Main Results:

    • The device demonstrated a mean lesion-targeting error of 2.53 mm (SD 0.59 mm).
    • The device provided rigid support for biopsy needles, reducing tissue laceration risk.
    • It supports multiple surgical tools and off-axial needle insertion, enhancing procedural versatility.

    Conclusions:

    • The developed lesion-targeting device is accurate and feasible for CT-guided interventions.
    • Its rigidity, safety features, and versatility make it suitable for minimally invasive procedures.
    • The low cost and disposability position it as a valuable tool for image-guided therapy environments.