Contents
How do you interpret DEXA scan results?
Understanding Bone Density Test Results
- A T-score of -1.0 or above is normal bone density. Examples are 0.9, 0 and -0.9.
- A T-score between -1.0 and -2.5 means you have low bone density or osteopenia.
- A T-score of -2.5 or below is a diagnosis of osteoporosis.
- The lower a person’s T-score, the lower the bone density.
What is a really bad T score?
(T-score ≥ -1.0 = normal) A T-score that is worse (or lower) than one standard deviation below the average peak BMD of a 30-year old, but better than 2.5 standard deviations below is considered low bone mass (sometimes referred to as osteopenia). (T-score between –1.0 and -2.5).
How long does it take to get results from a bone density scan?
Although the timing varies according to the hospital, facility, and radiologist who will be assessing your DEXA scan, you probably will hear back from your doctor with the results within a week or two. The results of a bone density measurement (DEXA scan) are reported in two ways: as T-scores and as Z-scores.
Is a bone density score of bad?
T-scores are usually in the negative or minus range. The lower the bone density T-score, the greater the risk of fracture (table 1). Normal bone density — People with normal bone density have a T-score between +1 and -1….GRAPHICS.
| T-score | Bone density |
|---|---|
| –2.5 or less | Osteoporosis |
Who is at risk for a DXA scan?
Common mistakes in this category include not performing BMD testing in a high-risk patient. For example, an asymptomatic 67-year-old woman is at risk on account of her age and gender and should undergo BMD testing even in the absence of any symptoms.
What’s the difference between a DXA and a radiograph?
DXA is today’s established standard for measuring bone mineral density (BMD). An x-ray (radiograph) is a noninvasive medical test that helps physicians diagnose and treat medical conditions. Imaging with x-rays involves exposing a part of the body to a small dose of ionizing radiation to produce pictures of the inside of the body.
Where are the Central devices used for DXA?
Most of the devices used for DXA are central devices, which are used to measure bone density in the hip and spine. They are usually located in hospitals and medical offices. Central devices have a large, flat table and an “arm” suspended overhead.
What is bone density scan ( DEXA, DXA )?
What is a Bone Density Scan (DEXA,DXA)? Bone density scanning, also called dual-energy x-ray absorptiometry (DXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone loss. DXA is today’s established standard for measuring bone mineral density (BMD).