Which texture index evaluates the pixel gray-level variations in lumbar spine DXA images?

Which texture index evaluates the pixel gray-level variations in lumbar spine DXA images?

• A. BMD (Bone Mineral Density)
• B. TBS (Trabecular Bone Score)
• C. QCT (Quantitative Computed Tomography)
• D. DXA (Dual-energy X-ray Absorptiometry)

Answer: (B)

The Trabecular Bone Score (TBS) is specifically designed to evaluate the texture of bone, particularly in lumbar spine DXA images. It assesses the pixel gray-level variations in these images, which reflect the microarchitecture of the trabecular bone. A higher TBS suggests better bone quality and a lower risk of fracture, which is important in the assessment of osteoporosis and other bone-related conditions. TBS works by analyzing the variability in pixel intensities, as variations indicate changes in the bone structure at a finer level than what Bone Mineral Density (BMD) alone provides. This additional layer of analysis helps clinicians make more informed decisions regarding patient management and treatment plans for bone health.

The Trabecular Bone Score (TBS) is specifically designed to evaluate the texture of bone, particularly in lumbar spine DXA images. It assesses the pixel gray-level variations in these images, which reflect the microarchitecture of the trabecular bone. A higher TBS suggests better bone quality and a lower risk of fracture, which is important in the assessment of osteoporosis and other bone-related conditions.

TBS works by analyzing the variability in pixel intensities, as variations indicate changes in the bone structure at a finer level than what Bone Mineral Density (BMD) alone provides. This additional layer of analysis helps clinicians make more informed decisions regarding patient management and treatment plans for bone health.