Bone Densitometry
Bone Densitometry
Bone Densitometry
Bone Density Scanning, also called dual-energy x-ray absorptiometry (DEXA) or bone densitometry, is an advanced form of X-Ray technology that is used to measure bone loss. DEXA is today’s established standard for measuring bone mineral density (BMD).
Why DEXA?
Dual-Energy X-Ray Absorptiometry (DEXA) is the most accurate and advanced test available for measuring bone mass with excellent resolution and reproducible precision. Minimum radiation (less than 1/20 of a chest x-ray) is used to determine the bone density of the spine or hip. A DEXA test is more sensitive than ordinary x-rays, more accurate than radiograms (radiographic absorptiometry) and can diagnose bone loss at an earlier stage. Safe and painless, the 10 minute DEXA scan is the most reliable test to determine even the earliest stages of bone loss associated with osteoporosis.
What is Osteoporosis?
Osteoporosis literally means ‘porous bones’. It is a disease where the bones in the body become weak and brittle, so much so that they fracture even due to minimal stress like bending over, cleaning and coughing. Osteoporosis affects over 6.1 crore Indians- 1 out of 8 men and 1 out of 3 women suffer from osteoporosis, making India one of the largest affected countries in the world.
How does Osteoporosis occur?
The strength of bones depends on the amount of calcium, phosphorous and other minerals that are present in them. Osteoporosis silently depletes the bones of calcium, making them weak and prone to fractures. These fractures occur mostly in the spine, hips and wrists.
Osteoporosis can occur due to several reasons. At menopause, the rate of bone loss in women increases to about 1-3%, thereby increasing their risk of osteoporosis. Bone loss also accelerates in men over 65 years of age. Osteoporosis can also be caused due to endocrinal disorders or from excessive use of certain drugs.
How Osteoporosis can affect your life?
Osteoporosis can leave a person severely incapacitated. People suffering from osteoporosis cannot move freely and experience difficulty in performing routine activities like household cleaning, shopping and travelling. In many cases, the affected person cannot look after oneself and may even need to be admitted in a hospital.
What are the symptoms of Osteoporosis?
There are no symptoms or pain during the early stage of osteoporosis. Once the bones are weakened, the common symptom includes non-specific pain.
How can Osteoporosis be diagnosed?
Early detection is important in order to slow down or prevent osteoporosis. Considering your risk factors, your doctor may recommend a Bone Densitometry (BMD) Test to determine the strength of your bones. In case you are diagnosed with osteoporosis, your doctor will prescribe treatment program that is suited for you.
Frequently Asked Questions
What is a Bone Densitometry test, and why is it important?
A Bone Densitometry test, also known as a DEXA scan, is a specialised X-ray that measures bone mineral density (BMD). It helps detect bone loss and osteoporosis at an early stage, allowing timely intervention to prevent fractures and complications.
How long does a DEXA scan take?
The DEXA scan is a quick and painless procedure that typically takes about 10 minutes. There is no need for injections or special preparation, and the radiation exposure is minimal.
Who should get a Bone Densitometry test?
A DEXA scan is recommended for:
– Women above 50 years and postmenopausal women.
– Men above 65 years or those with risk factors for osteoporosis.
– Individuals with a family history of osteoporosis.
– Those with frequent fractures, low calcium intake, or long-term steroid use.
How should I prepare for a Bone Densitometry test?
There is no special preparation required. However, you should:
– Wear loose, comfortable clothing without metal zippers or buttons.
– Avoid taking calcium supplements 24 hours before the test.
– Inform your doctor if you are pregnant or have had a recent contrast imaging test (like a CT scan or MRI with contrast).
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