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What is a DEXA scan?
A DEXA scan, or Dual-energy X-ray absorptiometry, uses spectral imaging to measure bone mineral density. It is a painless procedure that is done lying on your back.
What does a DEXA scan show?
DEXA scans are most commonly used to assess the risk of osteoporosis, a condition in which bones become porous and brittle. It can also be used to diagnose fractures or other bone-related conditions.
How long does a DEXA scan take?
DEXA scans typically only take 10 - 20 minutes.
Preparation for Examination
A DEXA scan, or Dual-energy X-ray absorptiometry, uses spectral imaging to measure bone mineral density. It is a painless procedure that is done lying on your back. DEXA scans are most commonly used to assess the risk of osteoporosis, a condition in which bones become porous and brittle. It can also be used to diagnose fractures or other bone-related conditions.
How do I prepare for a DEXA scan?
Typically, you won’t need to do anything special to prepare for a DEXA scan. Once you get to the imaging center, your doctor will ask you to remove all metal objects from your body, like jewelry, hairpins, or change from your pockets. You may also be asked to stop taking calcium supplements 24 hours before your procedure.
Need a Referral?
Diagnostic imaging can find fractures and broken bones, reveal infections and certain cancers before they spread, and help you live a longer, healthier life. Most diagnostic imaging services require a referral. Let us help you find one!
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DEXA FAQs
DEXA Scans are typically very quick, only lasting 10-20 minutes.
A DEXA Scan shows your bone density — the amount of bone mineral present in bone tissue. Low bone density could indicate osteoporosis, a condition that weakens the bones.
DEXA Scans are recommended for women aged 65 years and older, and men aged 70 years and older. If your bones show signs of osteoporosis, your doctor may want you to have follow-up scans every 1-2 years. However, your doctor may order a scan for you at any age, if you exhibit signs of a bone disorder.
DEXA Scans are considered to be highly accurate. Results are typically considered to be within 1% of the patient’s true bone density.
DEXA Scans aren’t typically used to diagnose cancer. However, it is possible for certain cancers to show up on these scans.
A score of -1 or above is considered healthy and normal. Low bone mass, or osteopenia, is considered to be between -1.1 and -2.4. A DEXA score of -2.5 or below qualifies as osteoporosis.