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.
Swollen ankles and feet. Swollen ankles and swollen feet are common and are often caused by fluid retention, or oedema. The cause of the swelling can range from an injury to medical conditions. Seek medical advice if you are concerned about swollen feet or ankles.
Your feet and ankles swell when fluid in the blood escapes from capillaries and accumulates in tissues, a condition known as peripheral edema. Causes range from benign to serious and include being overweight, long periods of standing, lengthy car or airplane rides, warm weather, and menstrual periods.