What determines the average intensity during the most intense half cycle?

The average intensity during the most intense half cycle is determined by intensity max. This value refers specifically to the highest intensity that occurs within a given cycle of the ultrasound wave, focusing on the peak values that are measured. During a ultrasound pulse, intensity noticeably fluctuates, with peaks and troughs throughout the wave cycle. The most intense half cycle will focus on the maximum values, hence intensity max captures this significant element.

The choice of intensity max provides insight into the potential biological effects that could arise from exposure to ultrasound, as tissues may be more affected by the higher intensity levels during specific phases of the pulse. By focusing on this highest point, it becomes possible to analyze the implications this intensity has regarding tissue heating and mechanical effects.

In contrast, pulsed average intensity and temporal peak intensity measure averages across different time frames or over the entire pulse duration, which do not accurately reflect the maximum intensity experienced in the most intense half cycle. Mean intensity also averages out over the entire pulse cycle, which is less specific than intensity max concerning the brief but critical moments of peak exposure.