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.
What causes swollen ankles? Excessive standing or walking can cause swollen ankles, but so can more serious conditions if ankles stay swollen. For examples, pregnancy commonly causes swollen ankles. But if it is sudden and the swelling is excessive, it could be a sign of preeclampsia. Also, if you have injured your foot or ankle, swelling can occur.