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.
Foot and ankle swelling can be caused by a variety of factors, ranging from skin-deep injuries to muscular-bone injury. Some reasons for swelling may be: Sprained ankle or joint. Sunburn. Allergic reaction to insect bites or plants. Thrombosis (blockage in veins) Lymphatic obstruction. Fractured or broken bones.