Two Decades of High-Resolution Peripheral Quantitative Computed Tomography: Present and Future Clinical Perspectives

Area of Science:

• Orthopedics and Bone Biology
• Medical Imaging Technology
• Osteoporosis Research

Background:

• High-resolution peripheral quantitative computed tomography (HR-pQCT) has been available for two decades.
• It is a valuable research tool for understanding bone adaptation in osteoporosis and other conditions.
• HR-pQCT provides rich 3D data for monitoring bone microarchitecture and estimating bone strength.

Purpose of the Study:

• To evaluate the role of HR-pQCT in clinical practice.
• To compare HR-pQCT fracture risk assessment with traditional bone densitometry.
• To identify optimal applications of HR-pQCT in patient care.

Main Methods:

• Review of HR-pQCT applications in bone research and clinical settings.
• Comparison of HR-pQCT-based fracture risk assessment with existing methods.
• Analysis of HR-pQCT's utility in managing patients within the "gray zone" of fracture risk.

Main Results:

• HR-pQCT fracture risk assessment is comparable to current standards.
• Clinical adoption has been limited by availability, regulatory, and cost-effectiveness challenges.
• HR-pQCT shows promise in refining treatment decisions for specific patient groups.

Conclusions:

• HR-pQCT is best suited for assisting treatment decisions in the "gray zone" of fracture risk.
• Longitudinal monitoring with HR-pQCT can inform treatment initiation, monitoring, and cessation.
• Further integration of HR-pQCT into clinical workflows is warranted for improved osteoporosis management.