Monitoring BMD with DXA: Short- and Long-term Precision

Abstract: The ability to monitor patient response to osteoporosis therapy with DXA depends on long-term in vivo precision and expected treatment response to therapy at a particular region. A review of recent peer-reviewed literature (57 studies) of short-term in vivo coefficient of variations (CV’s) found a statistically significant difference between manufacturers for the AP spine and femoral neck, but not for the total hip.