DEXA Bone Density Scan
Bone densitometry, also called dual-energy x-ray absorptiometry or DEXA is commonly used to diagnose osteoporosis and to assess an individual’s risk for developing fractures. DEXA is simple, quick and noninvasive. It’s also the most accurate method for diagnosing osteoporosis.
Learn More About DEXA Bone Density Scan
Dual-energy x-ray absorptiometry or DEXA, 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. DEXA is simple, quick and noninvasive. Imaging with x-rays involves exposing a part of the body to a small dose of ionizing radiation to produce pictures of the inside of the body. X-rays are the oldest and most frequently used form of medical imaging.
DEXA is most often performed on the lower spine and hips. In children and some adults, the whole body is sometimes scanned. Peripheral devices that use x-ray or ultrasound are sometimes used to screen for low bone mass.
Eating and Medications:
- Eat normally, but avoid calcium supplements for 24 hours before your exam.
Clothing:
- Wear loose clothes without metal (like zippers or belts); remove items like keys or wallets.
What to Expect During the Exam:
- You may need to wear a gown and remove jewelry, glasses, dentures, or anything with metal.
Inform Your Physician:
- Tell your doctor if you’ve had a barium exam, CT scan with contrast, or a radioisotope scan.
For Women Who are Pregnant:
- Let your doctor and technologist know. X-rays are avoided during pregnancy unless necessary.
Your exam will be reviewed by one of our board-certified radiologists, who will interpret the images and prepare a detailed report. Once completed, the report will be sent to your referring physician.
You can access your report through the online patient portal as soon as it is available. If you have questions about your results, please contact your referring physician.
Bone density tests are a quick and painless procedure.
Routine evaluations every two years may be needed to see a significant change in bone mineral density, decrease or increase.
The radiation used is very low with less than one-tenth of a chest x-ray and less than a day’s natural background exposure.
X-rays are performed using the lowest dose needed to get clear images. Modern equipment limits radiation to the area being scanned, protecting the rest of your body.