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The optimal interval for repeating DEXA scans is uncertain, but because changes in bone density over short intervals are often smaller than the measurement error of most DEXA scanners, frequent...
When outlying, seemingly extreme measurement results are repeated, they are often closer to the mean without any change in treatment; this phenomenon is called regression to the mean.
Do not use dual energy x-ray absorptiometry (DEXA) to screen for osteoporosis in women younger than 65 years or in men younger than 70 years with no risk factors. Do not routinely repeat dual...
Generally repeat DEXA should be done no more than every 12-24 months (ICSI), may consider every 6-12 months in steroid-treated patients or those on suppressive doses of thyroid hormones. Some common examples: Baseline T scores > -1.0, no new risk factors: repeat in 5 - 10 years.
Dr. Beck discusses the impactful intervals for DEXA tests. (Duration 1:45) What has become best practice at this time, with the evidence available, is if patients have osteoporosis on an initial bone density result, repeat the dual-energy X-ray absorptiometry (DEXA) again in two years or at any interval that might change your management.
Osteoporosis is defined as a history of fragility fracture and/or a T-score of -2.5 or lower on dual energy X-ray absorptiometry (DEXA). Osteopenia (or low bone mass) is defined as a T-score between -1.0 and -2.5 on DEXA. For all adults, recommend regular weight bearing and muscle building exercises for prevention of osteoporosis and falls.
SECTION 3: Diagnosis via DEXA Scan Interpretation Diagnosis is obtained by DEXA measurement of bone density at hip and lumbar spine. The resulting T-scores measure the number of standard deviations from the mean level for a young adult population. In pre-
DEXA scans can be repeated at appropriate intervals to monitor changes in bone density over time, allowing for effective management of bone health conditions. Accurate assessment of bone density is crucial for identifying early signs of osteoporosis and assessing fracture risk.
This controversy promotes confusion among clinicians regarding the optimal time for repeat DXA testing in practice. To date, data remain limited regarding the periodicity of DXA testing in patients receiving or not receiving medical therapy for osteoporosis.
Getting a DEXA scan? • A repeat scan may be needed after a few years. It depends on the results of previous cans and in most people they can be repeated after 2 years. • Positive T-score means your bones are stronger than normal. Negative scores are associated with weaker bones.