Summary
This article compares and contrasts musculoskeletal ultrasound and MRI in terms of image interpretation, accuracy, observer variability, economic impact, and education. The growth of musculoskeletal ultrasound and its impact on MRI are discussed. Factors influencing this trend include the availability of less expensive portable ultrasound machines, making musculoskeletal ultrasound accessible to non-radiologists, and the expanding applications of musculoskeletal ultrasound.
Selective substitution of musculoskeletal ultrasound for MRI can lead to significant cost savings in the healthcare system. However, issues related to accuracy, variability, education, and competence must be addressed when considering this shift in diagnostic imaging modalities.
