Which imaging test is the first choice for screening tuberculosis

Lung CT should be the first choice for screening tuberculosis. Because lung CT has higher resolution than chest X-ray, it can evaluate subtle features of lesions, reduce overlapping images, and easily detect hidden chest and tracheobronchial lesions. It can detect miliary shadows in the lungs early, reduce missed diagnosis of minor lesions, and clearly show the pathological characteristics of various types of tuberculosis. It can also accurately show whether mediastinal lymph nodes are enlarged.