As currently defined, the mechanical index (MI) uses only two parameters, peak rarefactional pressure and center frequency. The effect of another important factor, the pulse length was investigated by numerical computations for cavitation threshold similar to the analytical work underlying the MI. The effect of on is small for the original threshold criterion (maximum temperature, but can be substantial for the often-used criterion on maximum radius, The potential for bioeffects produced by purely mechanical means increases with while those mediated by sonochemicals does not.
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July 01 2005
Frequency, pulse length, and the mechanical index
Charles C. Church; Frequency, pulse length, and the mechanical index. ARLO 1 July 2005; 6 (3): 162–168. https://doi.org/10.1121/1.1901757
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