What advantage does Dual Photon Absorptiometry (DPA) have regarding imaging?

• A. It gives high-resolution images.
• B. It can image the spine and proximal femur.
• C. It has the shortest scan times.
• D. It is cost-effective.

Answer: (B)

Dual Photon Absorptiometry (DPA) is specifically advantageous in that it is designed to effectively measure bone mineral density in critical areas, particularly the spine and proximal femur. These sites are essential for assessing osteoporosis and fracture risk since they are common locations for osteoporotic fractures. By targeting these anatomical regions, DPA provides valuable information that can aid in diagnosing and managing bone health.

While other factors, such as resolution, scan time, or cost, may vary, the primary strength of DPA lies in its ability to assess areas where bone density directly correlates with fracture risk. This capability is crucial for healthcare providers aiming to prevent fractures in at-risk populations. Thus, the focus on imaging the spine and proximal femur underscores the importance of obtaining relevant data for effective patient care in bone densitometry.