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Choosing an appropriate dynamic range for acquiring radio-frequency (RF) data from a high-frequency ultrasound (HFU) system is challenging because the RF data amplitude typically covers several orders of magnitude between the sample surface and the deepest imaged regions. In addition, the saturated signal may decrease the accuracy of QUS methods because quantitative ultrasound (QUS) methods are sensitive...
By using two different analysis method, the scatter structure of rat liver was evaluated. Rat liver of fibrosis, NASH and control model were prepared. The self-made scanner system with 15-MHz ultrasound, which has good spatial resolution compared with commercial ultrasound scanner, were constructed. The single focused transducer with 15-MHz resonant frequency and 200µm lateral resolution was employed...
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