Please note that the CT Chest ILD protocol is specifically to evaluate for and differentiate between different types of interstitial lung diseases and includes expiratory phase and prone imaging. Usually this is on patients with known pulmonary fibrosis or longstanding shortness of breath. Also this is usually ordered by pulmonologists on outpatients. If a patient is acutely short of breath, has a lung nodule/mass, or in the hospital, usually a CT chest is the more appropriate order. This was previously named “High-Resolution Chest CT,” but the name was changed to better reflect it’s intended use. All of our CTs are high resolution.