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Updated: Jun 30, 2026

In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
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Fine needle assisted puncture positioning technique for CT-guided percutaneous interventions.

Qingqing Wang1, Huanjing Wang1, Jian Zhang1

  • 1Department of Interventional Radiology, The Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China.

Frontiers in Oncology
|June 29, 2026
PubMed
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A novel fine-needle-assisted technique enhances precision for CT-guided percutaneous interventions. This method improves accuracy and reduces procedure time in challenging cases compared to conventional approaches.

Area of Science:

  • Interventional Radiology
  • Medical Imaging
  • Surgical Techniques

Background:

  • CT-guided percutaneous interventions are crucial for treating various conditions.
  • Challenging target locations often necessitate advanced techniques to ensure accuracy and safety.
  • Conventional methods may involve multiple repositioning attempts, increasing procedure time and potential complications.

Purpose of the Study:

  • To evaluate the feasibility and safety of a fine-needle-assisted, two-step puncture technique.
  • To compare the accuracy and efficiency of this new technique against conventional approaches in CT-guided procedures.
  • To assess the impact on repositioning attempts and puncture duration.

Main Methods:

  • A retrospective study involving 40 patients with challenging target locations for CT-guided procedures.
Keywords:
CT-guidedchallenging target locationsfine-needle-assistedpercutaneous interventionspuncture positioning

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  • The fine-needle-assisted group used an initial fine needle for guidance before introducing the secondary intervention needle.
  • The conventional group involved direct, stepwise needle insertion. Key metrics included repositioning attempts, puncture time, success rates, and complications.

    • Main Results:

    • The fine-needle-assisted technique demonstrated successful initial needle placement in all cases.
    • This method resulted in significantly fewer repositioning attempts (0.9 vs. 2.2) and shorter puncture times (12.05 vs. 14.95 minutes) compared to the conventional approach.
    • No major complications were observed in either group, indicating a favorable safety profile.

    Conclusions:

    • The fine-needle-assisted puncture technique is a safe, feasible, and effective method.
    • It significantly improves precision in CT-guided percutaneous procedures at challenging locations.
    • This technique offers a superior alternative to conventional approaches for complex interventional radiology cases.