Which acronym means Spatial Peak Pulse Average?

Which acronym means Spatial Peak Pulse Average?

• A. Spatial Peak Temporal Average
• B. Spatial Average Pulse Average
• C. Spatial Peak Pulse Average
• D. Spatial Average Temporal Average

Answer: (C)

Spatial Peak Pulse Average is the index that uses the highest intensity at a location in the beam and averages it over the duration of the emitted pulse. “Spatial Peak” means the maximum intensity in space, at some point in the beam. “Pulse” means we only consider the time the ultrasound is actually on, not during the silent intervals. “Average” means taking the mean value over the pulse length. This differs from Spatial Peak Temporal Average, which averages the peak intensity over the entire cycle (including off times), and from Spatial Average Temporal Average, which uses a spatially averaged value and time-averages over the full cycle.

Spatial Peak Pulse Average is the index that uses the highest intensity at a location in the beam and averages it over the duration of the emitted pulse. “Spatial Peak” means the maximum intensity in space, at some point in the beam. “Pulse” means we only consider the time the ultrasound is actually on, not during the silent intervals. “Average” means taking the mean value over the pulse length. This differs from Spatial Peak Temporal Average, which averages the peak intensity over the entire cycle (including off times), and from Spatial Average Temporal Average, which uses a spatially averaged value and time-averages over the full cycle.