Bone density measurement Berlin Frohnau | Osteodensitometry
|
Bone density measurement, also known as quantification of bone mineral density, is the basis for the diagnosis of osteoporosis. It allows the determination of bone strength and the early detection of reduced bone mineral density. Various examination techniques are available for carrying out the test, with each method offering specific areas of application and advantages. |
 |
Most important procedure: DEXA (dual-energy X-ray absorptiometry)
DEXA (dual-energy X-ray absorptiometry) is the gold standard for measuring bone density, particularly in the lumbar spine and femoral neck. It is characterised by the following properties:
- High precision: measurement of bone mineral content is performed with outstanding accuracy.
- Low radiation exposure: only a minimal amount of ionising radiation is used.
- Effectiveness: the method allows for a precise calculation of bone mineral content in the targeted area.
These characteristics make the DEXA method a reliable tool for osteoporosis diagnosis.
DEXA is considered the gold standard for bone density measurement, especially in the lumbar spine and femoral neck. This procedure is characterised by the following features: High precision: very accurate measurement of bone mineral content. Low radiation exposure: uses minimal doses of ionising radiation. Effectiveness: it provides a precise calculation of the bone mineral content in the area examined.
T-score in bone densitometry
- Normal result: T-score up to -1 standard deviation.
- Osteopenia (decreased bone mineral content): T-score between -1 and -2.5 standard deviations.
- Osteoporosis: T-score below -2.5 standard deviations.
Special care with older patients
With older patients suffering from:
- spondylosis (signs of wear and tear in the spine)
- calcification of the aorta
there is a risk that the results of the DEXA measurement will be distorted. This can lead to an overestimation of bone density, which is why the findings in such cases should be critically scrutinised.
Classification of osteoporosis according to the results of a DEXA examination based on the T-scores
- Prevention range: T-value > -1 Normal result
- T-value between -1 and -2.5 Osteopenia
- Therapy range: T-value < -2.5 Osteoporosis
Who should have a bone density test?
In principle, a bone density test is recommended for anyone who
- clinical suspicion of osteoporosis in the presence of at least one risk factor or several risk factors
- in women after the onset of the menopause
- in people over 65 years of age
- In addition, high-risk groups, such as patients on long-term cortisone therapy or after organ transplants, must be examined every six months or once a year using DEXA.