Bone densitometry (DEXA)
A bone densitometry is a measurement of bone mineral density (BMD) at various places such as the hip and spine and possibly the wrist or other bones. In this examination, we use a beam of very low intensity X-rays to make images of the bones. This allows us to measure the density of the bone and determine the extent of any osteoporosis.
Plan your appointment
Course of the examination
The examination only takes a few minutes and is not painful. No anesthesia is required and the amount of radiation is harmless.
- To perform the bone measurement correctly, the nurse will ask you your weight and height.
- You will also be asked some questions related to your risk of osteoporosis. This information is essential for making the computer calculations.
- Next, you will lie on your back on the examination table and we will make scans of the back and left hip.
- If you had surgery on the back, we opt for scans of the wrist and left hip.
- When you have a bilateral prosthesis (on both hips), the wrist is also chosen.
- During the recordings, you should remain as still and relaxed as possible.
- Once the scans have been taken, the nurse uses the computer to calculate the bone density in various places.
This examination is only possible by appointment. Please always bring your identity card, your doctor's prescription and any previous radiological examinations. You must follow a specific preparation beforehand.
A DEXA examination is not possible:
- If you are pregnant.
- If you have undergone an examination with barium contrast (gastrointestinal examination) or a nuclear examination with radioactive substances 3 days previously to this examination.
- If metal is present in your back or hip; in this case, a measurement can be done on the wrist as an alternative.