Home > Services > Bone Mineral Densitometry
View Printable VersionQuantitative CT for Bone Mineral Densitometry (BMD)
A Quantitative CT for Bone Mineral Densitometry, or QCT-BMD for short, uses a CT scanner to produce a cross-sectional image of the spine. From these images, a bone density measurement can be calculated. This measurement is placed on a graph of high, moderate or low bone density measurements. From the graph, a report is generated that shows normal vs. low bone density.
A specially trained technologist conducts the QCT-BMD. Patients lie on a table that is attached to the CT Scanner. The lower back/lumbar spine area is imaged. The patient is positioned in the middle of a large doughnut-shaped ring. This ring holds the X-ray tube and the detectors that send information to the computer.
Exam results are interpreted by a radiologist.
- What is Bone Mineral Densitometry?
- Who should have a bone densitometry test?
- Why is this test important?
Frequently Asked Questions
What is Bone Mineral Densitometry?
Bone densitometry is a diagnostic technique used to measure the amount of minerals in bone, and is designed to help predict who needs treatment to protect from bone loss and predict who is at risk for fractures. It is a simple, non-invasive test, usually completed in 15-20 minutes.
Who should have a bone densitometry test?
People who are considered at risk for developing osteoporosis based on risk factors. Some of the more common risk factors include:
- Early menopause and post-menopausal women
- Family history of osteoporosis
- Long-term use of high dose corticosteroid tablets
- For men: low levels of testosterone
- Long-term immobility
- Heavy drinking, smoking
Why is this test important?
The results from a bone mineral density test can assess the strength of the bones as well as risk of fracture. This information can help your physician determine the best course of treatment.