Bone Density Measurement

What is Bone Densitometry (DEXA)? – Comprehensive Guide

What is Bone Densitometry?

Bone densitometry (DEXA - Dual-Energy X-ray Absorptiometry) is the most reliable method used to measure bone mineral density and diagnose osteoporosis.

How Does DEXA Work?

The DEXA device measures bone density using low-dose X-rays. The lumbar spine and hip region are typically evaluated.

What are T-Score and Z-Score?

The T-score compares bone density with that of young adults. The Z-score, on the other hand, makes a comparison with the same age group.

Interpreting the T-Score

A T-score between -1 and -2.5 is considered osteopenia, and below -2.5 is considered osteoporosis.

Who Should Get Bone Densitometry?

Postmenopausal women, individuals with a history of fractures, those on long-term corticosteroid therapy, and individuals with risk factors.

Advantages of DEXA

It is a fast, painless, and safe method involving low radiation.

How Often Should It Be Done?

It is usually repeated every 1-2 years, depending on the risk status.

Endometriosis Treatment and Bone Densitometry

Bone density monitoring is important in patients receiving GnRH therapy.

Conclusion

Bone densitometry is a critical method in the diagnosis and monitoring of osteoporosis.