Advances in computed tomography of the thorax.

Because of its enhanced density resolution, cross-sectional format, and ability to simultaneously evaluate lung, mediastinum, and chest wall, computed tomography has largely replaced conventional techniques in several clinical situations. The author discusses the CT detection of diseases such as lung nodules, mediastinal masses, and hilar lesions; CT's use as a screening technique; and its replacement of angiography in the evaluation of intrathoracic vascular lesions.