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A study for B-mode imaging using 100-MHz-range ultrasound through a fused quartz fiber

We have studied transmission methods of high-frequency ultrasonic waves through a thin fiber for direct observation of the microscopic image of the tissue. We reported previously that the C-mode images of the tissue on the glass placed in water were obtained by penetration method using a fused quartz fiber as the probe. In this paper, we describe that the B-mode image of a sample tissue in water was obtained by reflection method using the focused ultrasonic beam.