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Related Experiment Video

Updated: Jun 12, 2026

Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
06:03

Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules

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A new fine-needle aspiration system.

Mathias Glehr1, Andreas Leithner, Gerald Gruber

  • 1Medical University of Graz, Graz, Austria. mathias.glehr@klinikum-graz.at

Surgical Innovation
|May 28, 2010
PubMed
Summary
This summary is machine-generated.

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The new Thyrosampler needle system significantly increases cell yield in fine needle aspiration (FNA) biopsies compared to conventional FNA systems, improving sample quality for diagnosis.

Area of Science:

  • Medical Devices
  • Surgical Instruments
  • Diagnostic Procedures

Background:

  • Fine needle aspiration (FNA) failure is often due to insufficient or nonrepresentative cell samples.
  • Contamination also poses a challenge in FNA procedures.
  • Improving cell yield is crucial for accurate diagnoses.

Purpose of the Study:

  • To compare the cell harvesting efficiency of a new Thyrosampler needle system with an aeration aperture against a conventional FNA (C-FNA) system.
  • To quantify the difference in cell numbers obtained by each system.

Main Methods:

  • A double-blind study was conducted involving 30 FNA procedures.
  • Fifteen aspirations were performed using the Thyrosampler, and 15 using the C-FNA system.
  • Procedures were randomized and recorded.

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Last Updated: Jun 12, 2026

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06:03

Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules

Published on: May 23, 2015

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Published on: August 7, 2019

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Main Results:

  • The Thyrosampler yielded a median of 396,400 cells/mL, significantly higher than C-FNA's 59,680 cells/mL.
  • The aeration aperture system provided 564% more cells than the conventional system (P < .005).
  • This demonstrates a substantial increase in cellularity.

Conclusions:

  • The Thyrosampler, featuring a vacuum release mechanism, significantly enhances cell yield in FNA biopsies.
  • This improved cell quantity represents a clear advantage for diagnostic accuracy.
  • The new system offers a valuable improvement over conventional FNA techniques.