Table of Contents
ISRN Pulmonology
Volume 2011, Article ID 970813, 4 pages
Clinical Study

Needle Gauge and Cytological Yield in CT-Guided Lung Biopsy

1Department of Radiology, Stony Brook University Hospital, State University of New York, HSC Level IV, Room 120 Stony Brook, NY 11794, USA
2Department of Radiology, Johns Hopkins University, 600 North Wolfe Street, Baltimore, MD 21287-0005, USA

Received 24 February 2011; Accepted 7 April 2011

Academic Editors: M. Nosotti, L. Puente-Maestu, and A. Yokoyama

Copyright © 2011 William Moore et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Rationale and Objectives. The aim of this study is to determine the effect of needle size on the diagnostic yield and complication rate of lung nodule biopsy. Materials and Methods. A total of 209 patients are included in a retrospective study. All patients underwent a needle lung biopsy under computer-tomography-guided guidance. Multiple different needle gauges are used in this study. Results. We found no correlation between the gauge of the needle and the incidence of complications or diagnostic yield associated with lung nodule biopsy. However, there was a statistically significant difference in the number of needle passes and the gauge of the needle ( 𝑃 < . 0 1 ). Conclusion. Using a larger gauge needle does not correlate with an increase in complication rate. However, there is a statically significant decrease in the number of needle passes using a larger gauge needle. While the diagnostic yield comparing small gauge needle and large gauge needle was not statistically different, this lack of difference in yield could be related to the difference in number of passes. The use of larger needle is likely to decrease number of passes, thereby resulting in decreased procedure times.