Research Article
In Vitro Demonstration of Focused Ultrasound Thrombolysis Using Bifrequency Excitation
Table 1
Peak negative and positive pressures and pulse-average intensities measured at the focal point of the transducer in water for the range of exposure level used in the experiments and for both types of excitations.
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aIntensities are estimated by integrating waveforms recorded at the focal point. At = 220 W, occurrence of cavitation prevents from giving an accurate estimation of the intensity. Bifrequency waveform at = 150 W was also perturbed by cavitation. |