Determination of vertebral bone mineral density at the lumbar region by means of a calibration phantom

摘要

A geometrically defined, approximately anthropomorphic phantom for calibrating and checking instruments for determining the bone mineral content of the lumbar spine with a basic element (4-6) which simulates a vertebra and is composed of tissue- or water-equivalent material. The phantom can also consist of several sections (1-3) which contain basic elements with different dimensions and densities. …IMAGE…