Clinical application of percutaneous puncture biopsy with 20G automatic biopsy device guided by 18G coaxial puncture needle (a report of 45 cases)

Objective:To evaluate the effectiveness of percutaneous puncture biopsy with 20G automatic biopsy device guided by 18G coaxial needle.Methods:45 patients, 29 males and 16 females,age range 20～83 years,were performed percutaneous puncture biopsy with 20G automatic biopsy device guided by 18G coaxial needle under CT-guidance.The biopsy sites included lung (18 cases),liver (16 cases),thyroid gland (2 cases), mediastinum (3 cases),deep soft tissue of the neck(2 cases),pleura (3 cases) and peritoneal cavity (1 case). Results:In total 47 biopsy procedures were performed,the success puncture rate was 100%;the success biopsy rate was 93.3%(42/45),the biopsy diagnostic accuracy was 93.3%(42/45);the success biopsy rate and biopsy diagnostic accuracy of liver was 100%;the success biopsy rate of lung was 88.9%(16/18),the biopsy diagnostic accuracy was 87.5%(14/16).The total rate of complication was 8.9%(4/45),there were 3 cases with pneumothorax and one case with emptysis. Conclusion:Percutaneous puncture biopsy with 20G automatic biopsy device guided by 18G coaxial needle is a safe,effective and easy procedure of biopsy with coaxial puncture.