DEXA Scan - Bone Densitometry
Bone Mineral Density (BMD) scanning, also called dual-energy x-ray absorptiometry (DEXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone density. At EHL Diagnostic Centre in Gurgaon we have the most advanced Narrow Angle Fan Beam Technology based DEXA which takes just 6 minutes in doing Whole Body BMD.
Conventional DEXA which uses the older pencil beam technology is installed at most of the hospitals and diagnostic centres in India. Those machines take more than 45 minutes for the whole body scanning thereby giving 6 times more radiation dose to the patient. The Bone Mineral Density machine at EHL Diagnostics comes with an exclusive feature of Body Mass Fat Analysis.
DEXA is today's established standard for measuring bone mineral density (BMD). DEXA is most often used to diagnose osteoporosis, a condition that often affects women after menopause but may also be found in men. Osteoporosis involves a gradual loss of calcium, as well as structural changes, causing the bones to become thinner, more fragile and more prone to fracture. A recent study done in UK suggested that 90% Indians are deficient in Vitamin-D. Now every patient is getting tested for Vitamin-D and most of the people are found to have low Vitamin-D Levels. All such patients need to undergo Serum Calcium Testing and also Bone Mineral Density. The Vitamin-D supplements should be taken only after the test results of Vitamin-D, Calcium and BMD confirm low bone mineral density
DEXA Scan Report
Types of BMD
At EHL diagnostics, Gurgaon we regularly perform Bone Densitometry Scans.
- Whole Body DEXA Scan
- Single Site - Femur, Hip or Spine
- Any Two Sites
- Whole Body Fat Composition Analysis
No Prepration Required. Inform the technician if you are pregnant. Kindly take prior appointment by calling on +91-124-4827000, +919810333738
The BMD Machine at EHL Diagnostics is the fastest BMD in the city of Gurgaon. Whole Body DEXA Scan will take only 6 minutes thereby reducing the radiation dose by almost 66% as compared to other machines.
We at EHL Diagnostics Gurgaon recommend that you have a bone density test if:
- you are a woman age 65 or older
- you are a man age 70 or older
- you break a bone after age 50
- you are a woman of menopausal age with risk factors
- you are a postmenopausal woman under age 65 with risk factors
- you are a man age 50-69 with risk factors
Who Should undergo BMD Test
What a Bone Density Test Can Do
A bone density test tells you if you have normal bone density, low bone density (osteopenia) or osteoporosis. It is the only test that can diagnose osteoporosis. The lower your bone density, the greater your risk of breaking a bone. A bone density test can help you and your healthcare provider:
- learn if you have weak bones or osteoporosis before you break a bone
- predict your chance of breaking a bone in the future
- see if your bone density is improving, getting worse or staying the same
- find out how well an osteoporosis medicine is working
- let you know if you have osteoporosis after you break a bone
We at EHL Diagnostics Gurgaon recommend that you have a bone density test if:
- A bone density test may also be necessary if you have any of the following:
- an X-ray of your spine showing a break or bone loss in your spine
- back pain with a possible break in your spine
- height loss of ½ inch or more within one year
- total height loss of 1½ inches from your original height
Types of BMD Tests
Central DXA: We recommend that a bone density test of the hip and spine should be done using a central DXA machine to diagnose osteoporosis. DXA stands for dual energy x-ray absorptiometry. When testing can’t be done on the hip and spine, we would be doing central DXA test of the radius bone in the forearm. In some cases, the type of bone density testing equipment used depends on what is available in your community.
Healthcare providers measure bone density in the hip and spine for several reasons. First, people with osteoporosis have a greater chance of fracturing these bones. Second, broken bones in the hip and spine can cause more serious problems, including longer recovery time, greater pain and even disability. Bone density in the hip and spine can also predict the likelihood of future breaks in other bones.
With most types of bone density tests, a person remains fully dressed. The test at EHL Diagnostics would take 6 minutes while at the other centres the test can take upto 40 minutes.. Bone density tests are non-invasive and painless. This means that no needles or instruments are placed through the skin or body. A central DXA uses very little radiation. You are actually exposed to 10–15 times more radiation when you fly roundtrip between Delhi and Mumbai
When repeating a bone density test, it is best to use the same testing equipment and have the test done at the same place each time. This provides a more accurate comparison with your last test result. Although it is not always possible to have your bone density test at the same place, it is still important to compare your current bone density scores to your previous scores.
Standard x-rays cannot be used in place of bone density tests. Unlike bone density tests, X-rays are not able to show osteoporosis until the disease is well advanced.
Screening Tests. Also called peripheral tests, screening tests measure bone density in the lower arm, wrist, finger or heel. The types of peripheral tests are:
- pDXA (peripheral dual energy x-ray absorptiometry)
- QUS (quantitative ultrasound)
- pQCT (peripheral quantitative computed tomography)
Screening tests can help identify people who are most likely to benefit from further bone density testing. They are also useful when a central DXA is not available. These tests are often done at health fairs and in some medical offices. Screening tests cannot accurately diagnose osteoporosis and they should not be used to see how well an osteoporosis medicine is working.
Where to Do the test
Most people need a prescription or referral from their healthcare provider to have a bone density test. If you’re not sure where to go for a bone density test, contact your healthcare provider or your insurance plan to find out where the test is available. Also, most hospital radiology departments, private radiology groups and some medical practices offer bone density testing.
When you go for your appointment, be sure to take the prescription or referral with you. The testing center will send your bone density test results to your healthcare provider. You may want to make an appointment to discuss your results with your healthcare provider.
How Often to Repeat a Bone Density Test
People taking an osteoporosis medicine should repeat their bone density test by central DXA every one - two years. After starting a new osteoporosis medicine, many healthcare providers will repeat a bone density test after one year.
Understanding Bone Density Test Results
Your bone density test results are reported using T-scores. A T-score shows how much your bone density is higher or lower than the bone density of a healthy 30-year old adult. A healthcare provider looks at the lowest T-score to diagnosis osteoporosis.
What Your T-score Means. According to the World Health Organization (WHO):
A T-score of -1.0 or above is normal bone density. Examples are 0.9, 0 and -0.9.
A T-score between -1.0 and -2.5 means you have low bone density or osteopenia. Examples are T-scores of -1.1, -1.6 and -2.4.
A T-score of -2.5 or below is a diagnosis of osteoporosis. Examples are T-scores of -2.6, -3.3 and -3.9.
The lower a person’s T-score, the lower the bone density. A T-score of -1.0 is lower than a T-score of 0.5 and a T-score of -3.5 is lower than a T-score of -3.0.
If you have a peripheral bone density test, you should follow up with your healthcare provider. Discuss whether you need additional testing, such as a central DXA test of the hip and/or spine. The results of a peripheral test cannot be compared with the results of a central DXA.
People of Larger Size. Most central DXA machines cannot measure bone density in the hip and spine of patients who weigh more than 100 kgs. The machine at EHL Diagnostics can measure patients upto 150 kgs