Transcutaneous Lung Biopsy Under CT-guided in 120 Cases:a Comparative Study of 18 and 20 Gauge Needles / 实用放射学杂志

ABSTRACT

Objective To evaluate the difference of diagnostic efficacy and complications between 18 and 20 gauge(G)core needle in transcutaneous lung biopsies under CT-guided.Methods Transcutaneous lung biopsies were performed using 18G (group A) and 20G(group B) core needles in 60 cases respectively.Their diagnostic efficacy and complications were compared.Results In group A, 45 of48 patients with lung cancer were accurately diagnosed by biopsies( 93.8% ) and another 3 cases were false-negative( 6.2%). 10 of 12 patients with benign lesions were diagnosed by biopsy as well . In group B , 42 of 46 patients with lung cancer were diagnosed by biopsy ( 91.3%) and another 4cases were false-negative (8.7%) .10 of 14 patients with benign lesions were accurately diagnosed by biopsies . Pneumothorax was found in 20 cases in group A , only 2 cases of which were handled with drainage,whereas a little pneumothorax was found in 8 cases in group B without special handling.No differences between two groups in diagnostic accuracy,false-negative rate and pneumothorax rate found . Conclusion There are more complicated with pneumothorax and much severe degree in group A than that in group B,but the diagnostic accuracy,false-negative rate and pneumothorax rate are not significantly different between two groups.