| 摘要 |
A method of medical ultrasonic imaging is provided. The method includes transmitting a plurality of ultrasonic waves into a volume such that each successive wave is transmitted into the volume at a steering angle different than each preceding transmitted wave, receiving a plurality of ultrasonic echoes for each of the plurality of transmitted ultrasonic waves, each received echo is indicative of a density interface within the volume, each set of received echoes that corresponds to a single transmitted wave defines a steering frame, combining steering frames into a compound image, and identifying distal shadows in each steering frame.
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