CPC A61B 8/481 (2013.01) [A61B 8/461 (2013.01); A61B 8/5207 (2013.01); A61B 8/5215 (2013.01)] | 15 Claims |
1. An ultrasound imaging system, comprising:
a transducer;
a transmitting circuit which excites the transducer to transmit unfocused waves to a target region containing microbubbles in multiple angles;
a receiving circuit which receives echo signals of the unfocused waves transmitted in the multiple angles through the transducer;
a processor which:
selects a group of echo signals corresponding to a first number of angles in the multiple angles from the received echo signals of the unfocused waves transmitted in the multiple angles to obtain a first group of selected echo signals;
selects a different group of echo signals corresponding to a second number of angles in the multiple angles from the received echo signals of the unfocused waves transmitted in the multiple angles to obtain a second group of selected echo signals;
generates, according to the first group of selected echo signals, a first group of contrast enhanced images comprising a first intensity of signal representing a first group of microbubbles and a second intensity of signal representing a second group of microbubbles, wherein the second group of microbubbles has a lower velocity than the first group of microbubbles; and
generates, according to the second group of selected echo signals, a second group of contrast enhanced images comprising a third intensity of signal representing the first group of microbubbles and a fourth intensity of signal representing the second group of microbubbles, wherein the first intensity is weaker than the third intensity, and the fourth intensity is weaker than the second intensity; and
a display device which differently displays the first group of contrast enhanced images and the second group of contrast enhanced images or displays a combined contrast enhanced image based at least on the first group of contrast enhanced images and the second group of contrast enhanced images;
wherein the first number is greater than the second number.
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