• Bone densitometry can also be referred to as dual-energy x-ray absorptiometry (DEXA), or bone mineral density (BMD). It performs a measure of bone density, and reflects the strength of bones as represented by calcium content. This procedure is commonly used to diagnose osteoporosis and osteopenia, and to determine the level of an individual’s risk of developing bone fractures.
• The procedure uses a very small dose of ionizing radiation to produce pictures of the inside of the body (usually the lower spine and hips) to measure bone loss.
• This exam requires very little or no special preparation. Tell the Radiographer if there is a possibility that you are pregnant, or if you recently had a barium exam or received an injection of contrast material for a CT or radioisotope scan. Don’t wear jewellery, and make sure you wear loose, comfortable clothing. You may be asked to wear a gown. You should not take calcium supplements for at least 24 hours before your exam.
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