In digital radiography the sensors shape a plate, but in the EOS system, which is a slot-scanning system, a linear sensor vertically scans the patient. Plain radiography was the only imaging modality available during the first 50 years of radiology.
4) Pregnancy. Pregnancy is another of the common causes of swollen feet and ankles. There are three reasons for this: a) the excess weight gained puts more pressure on the legs and feet. b) the expanding uterus can place pressure on the blood vessels for the legs and. c) pregnancy hormones cause the body to retain fluids.
Common causes of foot, leg, and ankle swelling. There are many potential causes of foot, leg, and ankle swelling. In most cases, swelling occurs as a result of certain lifestyle factors, such as: Being overweight: Excess body mass can decrease blood circulation, causing fluid to build up in the feet, legs, and ankles. Standing or sitting for long periods: When the muscles are inactive, they canât pump body fluids back up toward the heart. The retention of water and blood can cause swelling in the legs.