What is the echo palpation technique used for?

• A. A method used to isolate and evaluate a palpable mass in real time by immobilizing the mass between two fingers while scanning with the opposite hand
• B. A technique to measure tissue stiffness with elastography
• C. A method to assess blood flow
• D. A method to determine lesion size by calipers

Answer: (A)

Echo palpation is a real-time localization technique used when there is a palpable breast lump. The examiner immobilizes the mass by gently holding it between the fingers of the non-scanning hand while scanning with the other hand. This anchoring ties the physical palpation to the ultrasound image, allowing you to precisely isolate the lesion, assess its margins, and observe internal characteristics in the exact area of concern. It helps ensure you’re imaging the correct spot and that palpation findings correlate with the ultrasound appearance. The other options describe different ultrasound modalities—elastography measures stiffness, Doppler assesses blood flow, and calipers are used to measure size on the image—which are not what echo palpation is specifically for.