Which term best describes the broad field of ultrasound practice across multiple body systems?

• A. Doppler
• B. Radiology
• C. Sonography
• D. Ultrasound Therapy

Answer: (C)

Sonography describes the practice of using high-frequency sound waves to visualize structures across many body systems. It covers imaging in obstetrics, abdomen, vascular studies, musculoskeletal assessments, and more, making it the broad field that spans multiple specialties. Doppler is a specialized technique within ultrasound that assesses blood flow, not the overall field. Radiology is the broader imaging discipline that includes multiple modalities such as X-ray, CT, MRI, and ultrasound, but the question focuses on ultrasound-specific practice. Ultrasound therapy uses ultrasound energy for treatment, not imaging. So, the best term is sonography.