ウイルス感染症の胸部画像診断

Computed tomography（CT） is an imaging modality that plays an important role in clinical practice. It began being used as a clinical device in the United Kingdom in 1972 and has made dramatic progress over the past half century. The principle is to create a tomographic image by getting X-ray images from multiple directions, to process the information obtained by a computer, and to create an image that allows you to check the detailed internal state and anatomy of the parts of the body. In the clinical practice in patients with respiratory infections, it is often experienced that CT examinations make the pneumonia detectable, which are difficult to detect with X-ray examinations, and can be used to evaluate the three-dimensional shape, spread, and severity. In this article, we focus on CT imaging for various viral infections and introduce CT images of COVID-19 pneumonia.