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A novel hundred-microsecond histotripsy treatment method is proposed. This method utilizes the confocal dual-frequency of second harmonic superimposition control approach. A custom-designed transducer consisting of two confocal spherical-annular element arrays is used. The frequencies of the transducer are 1.1 and 2.2 MHz, and the peak negative pressures are 5 MPa and 12 MPa with shock wave. Due to...
We evaluated and compared the diagnostic accuracy (DA) of apparent diffusion coefficient (ADC) values with that of lesion-to-liver ADC ratios in the characterization of solid focal liver lesions (FLLs). This prospective study was approved by the Institutional Human Ethics Board, after waiving written informed consent. Diffusion-weighted imaging and other routine magnetic resonance imaging were performed...
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