Emphysema: Hyperaeration means that the lungs appear more radiolucent on chest x-ray and over expanded. This is due to enlargement of the airspaces caused by destruction of the walls of the alveoli (air sacs).
A radiographer works with medical imaging equipment (particularly X-rays) to create images of patients that a physician may use in diagnosing injuries and disease. They typically work in hospitals, large clinics or as part of a dedicated radiography business that sees referrals for these procedures.
What do demographers do? What do demographers do? Demographers study populations to determine their size and composition and to predict how they are likely to change in years to come. In all countries, this knowledge is key to meeting the populationâs present and future needs, for example, to decide how many new kindergartens, schools or retirement homes are needed.