Guidance of percutaneous pulmonary biopsies with real-time CT fluoroscopy

Eur J Radiol. 2002 Apr;42(1):74-9. doi: 10.1016/s0720-048x(01)00391-6.

Abstract

Objective: Clinical evaluation of computed tomography (CT) fluoroscopy and comparison with conventional CT guidance for monitoring of percutaneous pulmonary biopsy procedures.

Methods: Twenty CT-guided pulmonary biopsy procedures were conducted. The interventions have prospectively been performed either with CT fluoroscopy or with conventional CT guidance. About 120 kV and 50 mA with a frame-rate of eight images per second were used for CT fluoroscopy. Number of pleural needle passages, procedure times, radiation doses and histologic results were analyzed separately for both methods.

Results: Compared with conventional CT guidance, CT fluoroscopy was associated with less pleural needle passages (1.8+/-0.6 vs. 1.1+/-0.3; P=0.003, t-test) and procedure times were shorter than for conventional CT guidance (12.7+/-2.2 min vs. 26.7+/-16.4 min; P=0.02). Analysis of estimated patient related radiation exposure and histologic outcome showed no significant difference between conventional and fluoroscopic CT-guided procedures (P>0.05).

Conclusion: CT fluoroscopy facilitates guidance of percutaneous pulmonary biopsy procedures. Compared with conventional CT assistance, procedure times are decreased and less pleural needle passages are required. While patient-related radiation exposure is similar, operator-related radiation exposure remains a disadvantage associated with CT fluoroscopy.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Aged
  • Aged, 80 and over
  • Biopsy / methods*
  • Female
  • Fluoroscopy*
  • Humans
  • Lung / diagnostic imaging
  • Lung / pathology*
  • Lung Neoplasms / diagnostic imaging
  • Lung Neoplasms / pathology*
  • Male
  • Middle Aged
  • Prospective Studies
  • Tomography, X-Ray Computed*