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Representative example of data obtained during an acoustic output sweep. This data corresponds to the 1.0 MI output level in a 3.8 MHz sweep. On the left, the B-mode view is seen. In the center is the noise frame. The SNR map on the far right is obtained by dividing the B-mode signal by the noise frame power. MI recommendations for imaging the fetal abdomen are based on the sector overlapping the target, shown here in red.
