How accurate is a heel ultrasound as a screening tool for osteoporosis?

The National Osteoporosis Risk Assessment (NORA) Study, published December 12, 2001, in the Journal of the American Medical Association, assessed osteoporosis in 200,000 postmenopausal women using peripheral bone densitometers. The authors concluded that, while osteoporosis and low bone mass are reaching epidemic proportions, the conditions remain largely under-diagnosed. Because DEXA is an expensive and limited option for many, ultrasound remains an effective and practical screening tool for the population at large.