Ultrasound Using REMS Technique Can Measure Bone Density, Fragility

Background: Osteoporosis is a common skeletal disorder. Its evaluation is frequently performed using dual-energy X-ray absorptiometry (DEXA). Newer techniques using ultrasound are being developed, including Radiofrequency Echographic Multi-Spectrometry (REMS). Objective: To describe the accuracy of REMS technology in evaluating bone characteristics compared with DEXA. Discussion: DEXA uses its measured bone mineral density (BMD) value to evaluate bone quality and the potential for future bone fractures. DEXA can produce a Trabecular Bone Score, which uses grayscale methods to evaluate the bone microarchitecture. DEXA can also produce a Bone Strain Index, which can evaluate the underlying bone strength. REMS is a new technique that uses ultrasound to evaluate BMD and fracture risk. Ultrasound signals are analyzed to evaluate the bone surface. Unlike other ultrasound techniques that can only evaluate more superficial bone structures, REMS can evaluate deeper structures such as the lumb more...