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. Author manuscript; available in PMC: 2011 Feb 16.
Published in final edited form as: Circulation. 2010 Feb 1;121(6):742–749. doi: 10.1161/CIRCULATIONAHA.109.889071

Fig. 1.

Fig. 1

a) The 1 MHz histotripsy therapy transducer with an ultrasound imaging probe inserted in its central hole. b) Ultrasound pressure waveform of the histotripsy pulse at the transducer focus measured by a fiber optic hydrophone.