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Related Experiment Videos

Pneumothorax during fluoroscopic biopsy: effect on nodule depth

D F Yankelevitz1, C I Henschke, S D Davis

  • 1Department of Radiology, New York Hospital-Cornell University Medical College, New York 10021.

Clinical Imaging
|April 1, 1994
PubMed
Summary

Pneumothorax during computed tomography (CT)-guided lung nodule biopsy can alter lesion depth. This change, equal to the pneumothorax size, is crucial for accurate fluoroscopic-guided biopsies, especially with single-plane fluoroscopy.

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Area of Science:

  • Medical Imaging
  • Pulmonology
  • Interventional Radiology

Background:

  • Transthoracic needle aspiration biopsy is a common procedure for lung nodules.
  • Fluoroscopic guidance is frequently used, relying on computed tomography (CT) measurements for lesion depth.

Purpose of the Study:

  • To evaluate the impact of pneumothorax on lung nodule depth during CT-guided biopsy.
  • To assess the implications for fluoroscopic guidance accuracy.

Main Methods:

  • Retrospective analysis of 10 patients undergoing CT-guided lung nodule biopsy.
  • Measurement of lung nodule depth changes in patients who developed pneumothorax.

Main Results:

  • Pneumothorax development during biopsy caused a measurable change in lung nodule depth.

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  • The observed change in depth was equivalent to the size of the induced pneumothorax.

    • Conclusions:

    • Pneumothorax significantly affects lung nodule depth, impacting biopsy accuracy.
    • Awareness of this effect is vital for reducing false-negative results in CT-assisted fluoroscopic biopsies, particularly with single-plane fluoroscopy.