US 11,786,216 B2
Ultrasound contrast enhanced imaging method and ultrasound imaging system
Maodong Sang, Beijing (CN); Xirui Zhang, Beijing (CN); and Lei Zhu, Beijing (CN)
Assigned to Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen (CN); and Beijing Shen Mindray Medical Electronics Technology Academy Co., Ltd., Beijing (CN)
Filed by SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., Guangdong (CN); and BEIJING SHEN MINDRAY MEDICAL ELECTRONICS TECHNOLOGY ACADEMY CO., LTD., Beijing (CN)
Filed on May 14, 2020, as Appl. No. 16/874,553.
Application 16/874,553 is a continuation of application No. PCT/CN2017/111898, filed on Nov. 20, 2017.
Prior Publication US 2020/0268352 A1, Aug. 27, 2020
Int. Cl. A61B 8/08 (2006.01); A61B 8/00 (2006.01)
CPC A61B 8/481 (2013.01) [A61B 8/461 (2013.01); A61B 8/5207 (2013.01); A61B 8/5215 (2013.01)] 15 Claims
OG exemplary drawing
 
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.