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Your bone density is considered normal. Between -1 and -2.5: Your score is a sign of osteopenia, a condition in which bone density is below normal and may lead to osteoporosis.-2.5 and below: Your bone density indicates you likely have osteoporosis.
-1 and above: Your bone density is normal -1 to -2.5: Your bone density is low, and it may lead to osteoporosis -2.5 and above: You have osteoporosis
Normal: Bone density is within 1 SD (+1 or −1) of the young adult mean. Low bone mass: Bone density is between 1 and 2.5 SD below the young adult mean (−1 to −2.5 SD). Osteoporosis: Bone density is 2.5 SD or more below the young adult mean (−2.5 SD or lower). Severe (established) osteoporosis: Bone density is more than 2.5 SD below the young adult mean, and there have been one or more osteoporotic fractures.
The lower bone density test results, the lower your total bone density, indicating osteopenia or osteoporosis. A T-score of -1.0 to -2.5 signifies osteopenia, meaning below-normal bone density without full-blown osteoporosis. This stage of bone loss is the precursor to osteoporosis.
A Z-score compares your bone density to the average bone density of people your own age and gender. For example, if you are a 60-year-old female, a Z-score compares your bone density to the average bone density of 60-year-old females. NOTE: Any post menopausal woman should always request her T-score.
The results of the bone mineral density test are compared to two standards (norms): The age-matched reading, known as the Z-score, compares a person's bone density to... The young-normal reading, known as the T-score, compares bone density to...
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.
Bone density tests (also called bone mineral density tests or BMD tests) check how strong your bones are by measuring a small part of one or a few of them. The results can help your doctor know ...
Dual-energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD). Two X-ray beams, with different energy levels, are aimed at the patient's bones. When soft tissue absorption is subtracted out, the bone mineral density (BMD) can be determined from the absorption of each beam by bone. Dual-energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology. The DXA scan is typically used to diagnose and follow osteoporosis, as contrasted to the nuclear bone scan, which is sensitive to certain metabolic diseases of bones in which bones are attempting to heal from infections, fractures, or tumors.
A scanner used to measure bone density using dual energy X-ray absorptiometryBone density, or bone mineral density (BMD), is the amount of bone mineral in bone tissue. The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. Bone density measurement is used in clinical medicine as an indirect indicator of osteoporosis and fracture risk. It is measured by a procedure called densitometry, often performed in the radiology or nuclear medicine departments of hospitals or clinics. The measurement is painless and non-invasive and involves low radiation exposure. Measurements are most commonly made over the lumbar spine and over the upper part of the hip. The forearm may be scanned if the hip and lumbar spine are not accessible. There is a statistical association between poor bone density and higher probability of fracture. Fractures of the legs and pelvis due to falls are a significant public health problem, especially in elderly women, leading to much medical cost, inability to live independently and even risk of death.