[The role of high resolution computerized tomography (HRCT) in the diagnosis and treatment of pulmonary tuberculosis].
In this study we have tried to put forth the role of thorax high resolution computerized tomography (HRCT) in the pursue of the diagnosis and treatment of pulmonary tuberculosis. It was detected that of the 67 patients with active tuberculosis, 66 (98.5%) had centrilobular nodule or branching linear structures, 65 (97%) had acinary nodule, 55 (82%) had consolidation, 55 (82%) had cavities, 54 (80.5%) had tree in bud appearance and 52 (77.6%) were bilateral. Of 30 patients suffering from inactive tuberculosis, 26 (86.6%) were detected to have fibrotic changes, 20 (66.6%) bronchiectasis, 18 (60%) bronchovascular distortion and 14 (46.6%) pericicatrial emphysema. The sensitivity, specificity, positive predictive value, negative predictive values of thorax HRCT in determining the activity of the illness were found as 97%, 86.7%, 94.2% and 92.9% respectively. In conclusion we can say that thorax HRCT is a powerful and reliable diagnostic method for pulmonary tuberculosis. Thorax HRCT can be used as noninvasive diagnostic method especially in the patients suffering from smear and culture negative active tuberculosis.