ABSTRACT
Objective To discuss different performance of DR and CT examination on secondary pulmonary tuberculosis,to improve the clinical guidance value of CT in the diagnosis of secondary pulmonary tuberculosis. Methods The image data of 52 cases with secondary pulmonary tuberculosis confirmed by pathology were collected, including chest DR radiography and CT scans.The different image characteristics of two kinds of imaging examination were analyzed and compared.Results In 52 cases of secondary pulmonary tuberculosis,chest X -ray plain film found lesions calcification in 3 cases,2 cases of bronchiectasis,pleural thickening and adhesion in 12 cases,pleural effusion in 1 case,empty cavity in 4 cases,emphysema in 1 case,the lung nodules in 5 cases.Chest CT revealed lesions calcification in 9 cases,16 cases of bronchiectasis,pleural thickening and adhesion in 40 cases,pleural effu-sion in 4 cases,empty cavity in 10 cases,emphysema in 8 cases,the lung nodules in 10 cases,6 cases of pulmonary bullae,pulmonary interstitial change:4 cases of lung reticulocyte shadows,interlobular septal thickening in 4 cases, ground glass sample density in 4 cases.Conclusion DR and CT can be used for inspection of secondary pulmonary tuberculosis,but CT is a better tool,it has important guiding role for clinical diagnosis and treatment.