How fast should you move the transducer during therapeutic ultrasound?

How fast should you move the transducer during therapeutic ultrasound?

• A. 4 cm per second
• B. 1 cm per second
• C. 2 cm per second
• D. 6 cm per second

Answer: (A)

Moving the transducer at a steady pace distributes the ultrasound energy evenly across the treatment area and helps prevent hotspots that can occur if the applicator is held in one spot. A practical scanning speed is about 4 cm per second. This rate provides overlapping treatment zones so each area receives the intended dose without overheating. If you move too slowly, tissue heating can become excessive; if you move too quickly, the beam doesn’t dwell long enough on any spot to deliver the desired therapeutic dose. So, roughly 4 cm per second is the best balance for effective, safe treatment.

Moving the transducer at a steady pace distributes the ultrasound energy evenly across the treatment area and helps prevent hotspots that can occur if the applicator is held in one spot. A practical scanning speed is about 4 cm per second. This rate provides overlapping treatment zones so each area receives the intended dose without overheating. If you move too slowly, tissue heating can become excessive; if you move too quickly, the beam doesn’t dwell long enough on any spot to deliver the desired therapeutic dose. So, roughly 4 cm per second is the best balance for effective, safe treatment.