Pulmonary, or chest, imaging includes imaging of the lungs and surrounding structures in the thorax. Imaging of the chest represents a substantial portion of the imaging tests that are routinely performed. Common imaging methods include X-ray, CT, MRI, and ultrasonography (US). Each imaging method has advantages and disadvantages. Radiology exams, once completed, are read and interpreted by board-certified, fellowship-trained radiologists; however, most physicians should know the basics of how to interpret these images.