Pneumonia is an infection of one or both lungs caused by bacteria, a virus, or a fungus. It causes inflammation and fluid build-up in the air sacs, or alveoli, of the lungs. Bacterial and viral ...

Denoised ultra-low-dose CT can effectively diagnose pneumonia in immunocompromised patients using only 2% of the radiation dose of standard CT, according to a study published in Radiology ...