The Factor Analysis of the Incidence of Pneumothorax after Spiral CT-guided Percutaneous Lung Biopsy

Objective To analyze the factor on the incidence of pneumothorax associated with spiral CT-guided percutaneous lung puncture biopsy. Materials and Methods 68 percutaneous biopsies were done for pulmonary lesions from November, 2006 to August, 2009,and then the related factors of pneumothorax were analyzed statistically. Results A small amount of pneumothorax in 10 cases of 68 patients,accounting for 17%,a large number of pneumothorax in 3 cases,accounting for 4%,(the side of the lung compression than 60%).Lesion size,depth,emphysema,diameter of puncture needle and puncture frequency are relevant with pneumothorax occurrence. Conclusion To reduce the incidence of pneumothorax,the possibility of pneumothorax should be fully taken into account before operation when patients with small deep pulmonary lesions merger with emphysemas,select of thin needle puncture as well as reduce number of times of biopsies were necessary.