What is Bone Density or DEXA?

DEXA (Dual Energy X-ray Absorptiometry), or bone densitometry is an imaging examination that can diagnose osteoporosis by precisely measuring the bone density and the mineral content of bone. Osteoporosis has been called the "silent disease" because it doesn't produce symptoms, until a fracture occurs. One out of two women over the age of 50 are at risk for an osteoporotic fracture. A DEXA scan can detect bone loss even in its earliest stages. Once bone loss is detected, your physician can effectively treat it. Utilizing very low levels of x-rays, the DEXA scan measures the bone density of fracture-prone areas like the hip and spine.

Who is at risk for Osteoporosis?

Twenty five million Americans have osteoporosis. About 80% are women. However one out of every 40 men have osteoporosis. Some see evidence of this disease in their early 40s. The determining risk factors are:

• Advancing age
• Low calcium intake
• Female gender
• Low Vitamin D
• Caucasian or Asian
• Excessive alcohol
• Family history
• Excessive caffeine
• Small thin bones
• Menopause
• Smoking
• Sedentary lifestyle

Your DEXA Experience

A DEXA exam is simple and painless. You will be asked to lie still on the examination table while the scanner measures the density of your hip and spine. If you wear clothing without any zippers or buttons, it is not necessary to even undress for the scan. The entire process takes about 15 minutes to complete. Once your exam is finished the radiologist will analyze your bone density and compare your bone to normal bone density values. These results will then be sent to your doctor. If necessary, your doctor can determine if any lifestyle changes or treatment measures should be taken.