COMMON DIAGNOSTIC TESTS

BONE DENSITOMETRY

Also known as Dual energy X-ray Absorptiometry or DXA, bone densitometry is the technology used to measure and monitor changes in bone density. The gradual loss of density weakens the bones and leads to fractures. This condition is called osteoporosis. Many factors such as dietary habits and family history contribute to the development of this disease. A bone densitometer can let patients know whether or not they have osteoporosis or if they are at risk for developing the disease.


How a bone densitometer works
The patient is required to lie down on an examining table where a DXA source of two low-dose x-rays measure the bone density of the fracture prone area. This procedure is painless and relatively harmless. The bone densitometer accurately and quickly measures the patient's bone mineral density (BMD). This test also gives a comparison of the results against a reference population based on age, weight, sex, and ethnicity. The resulting information is then sent to the patient's doctor so s/he can make a decision about treatment or prevention.


What a bone densitometer looks at
This diagnostic test examines vulnerable areas where breakage is most likely to occur. These areas include the spine, wrists and hip.


Did you know. . . ?
After extended exposure to weightlessness in space, astronauts may develop a weakening or loss of bone mass similar to osteoporosis. A bone densitometer is used to monitor changes in bone mass while astronauts are in space.