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Related Experiment Videos

CT-guided transthoracic needle biopsy using an ipsilateral dependent position.

A M Rozenblit1, J Tuvia, G N Rozenblit

  • 1Department of Radiology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY 10467-2490, USA.

AJR. American Journal of Roentgenology
|June 14, 2000
PubMed
Summary

This study found that CT-guided transthoracic needle biopsy in an ipsilateral dependent position is feasible, effective, and safe for lung and mediastinal lesions. Further research is needed to confirm its role in reducing pneumothorax rates.

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Area of Science:

  • Medical Imaging
  • Interventional Radiology
  • Pulmonary Medicine

Background:

  • Transthoracic needle biopsy (TTNB) is a common procedure for diagnosing lung and mediastinal lesions.
  • Pneumothorax is a known complication of TTNB, potentially impacting patient outcomes and requiring further intervention.
  • Optimizing patient positioning during TTNB may offer a strategy to mitigate procedural risks.

Purpose of the Study:

  • To evaluate the feasibility, effectiveness, and safety of CT-guided TTNB performed with patients in an ipsilateral dependent position.
  • To assess whether this positioning technique influences the rate of pneumothorax compared to standard procedures.
  • To determine the technical difficulty associated with this modified biopsy approach.

Main Methods:

  • CT-guided needle biopsy was performed on 23 patients with lung or mediastinal lesions.

Related Experiment Videos

  • Patients were positioned with the affected side in a dependent position.
  • Procedures included fine-needle aspiration (n=23) and core biopsy (n=6).
  • Technical difficulty was graded (I-III) and compared to routine TTNB.

    • Main Results:

    • Adequate tissue samples were obtained in 96% of procedures.
    • A low rate of asymptomatic pneumothorax (8.7%) was observed.
    • Most procedures (78%) were rated as grade I difficulty (no more difficult than standard TTNB).
    • The technique facilitated avoiding pleural traversal in 50% of mediastinal mass biopsies.

    Conclusions:

    • CT-guided TTNB in an ipsilateral dependent position is a feasible, effective, and safe method for selected lung and mediastinal lesions.
    • The potential of this technique to reduce pneumothorax rates warrants further investigation.
    • This positioning may be particularly beneficial for certain lesion locations, such as anterior lesions.