Different types of tests can accurately determine bone density. Many of these tests are painless and do not take a lot of time. DEXA is a quick and accurate test that involves x-ray scans to test bone density.
When Bone Density Scan Tests Are Performed
These tests are used most often to diagnose:
Osteoporois
Spinal deformities
Osteopaenia
Fractures
Elderly females are particularly susceptible to osteoporosis. Some diseases, including liver disease, chronic renal failure, rheumatoid arthritis and endocrine disease can lead to bone loss.
What Happens Before the Test
Before performing these tests, physicians need to know:
The patient's complete medical history
The patient's risk factor for bone disease
Whether the patient is pregnant. Pregnant women should avoid exposure to x-rays because they can be harmful to the fetus.
Procedures
You will have to dress in a hospital gown and remove all jewelry to undergo testing.
The types of tests available include:
DEXA -- This procedure uses multiple x-ray beams to test the density of bones and soft tissue.
SEXA -- This procedure uses a single x-ray beam and is most often used on peripheral areas.
Ultrasound -- These measurements assess the bone's structural integrity. Quantitative ultrasound tests take just a few minutes and provide results in print out form.
What to Expect After the Test
The majority of these tests take approximately 30 minutes. Patients are allowed to go home immediately following the procedure. The physician will schedule a follow-up appointment to discuss the results.
Interpreting Bone Density Measurements
Bone density is expressed as a Z-score, T-score or in grams/cm2. These figures express bone density in relation to individuals in a similar demographic group known as the reference population.
The T-score reference population includes young adults who are the same gender as the patient. Z-scores compare bone densities of individuals in the same age group and of the same sex. A T-score of 2.5 or less indicates osteoporosis.
Complications Associated with Bone Density Testing Melbourne
This type of testing is safe. The radiation dose is no larger than what patients experience on a daily basis in their normal environment.
How Patients Should Take Care of Themselves After the Test
These tests are painless and safe with no side effects. Patients are able to return to their normal routine immediately following the test.
Long-Term Consequences
Patients with osteoporosis receive treatment and subsequent testing to ensure the treatment is effective in maintaining bone integrity. Patients should attempt to have all testing done at the same facility and with the same machine. This will ensure test results are consistent and there are no deviations based on the facility or equipment.
Other Bone Density Tests
X-rays are ineffective for detecting the early stages of osteoporosis. The only time traditional x-rays are effective at detecting osteoporosis is after the patient has already lost approximately one-third of total bone mass. Some physicians use standard x-rays to rule out other causes of symptoms, including bone fractures.
Where to Go for Help
Your regular physician
Osteoporosis Victoria - Ring (03) 8531 8099
What to Remember
Bone density tests determine the strength or density of bones.
These tests are useful for diagnosing osteopaenia, osteoporosis, and the risk of suffering bone fractures in the future.
Most of the procedures used to test bone density are painless and quick.
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