ULTRASONIC BLOOD FLOW IMAGING METHOD AND ULTRASONIC IMAGING APPARATUS

WIPO Patent Application WO/2023/036201

A1

An ultrasonic blood flow imaging method and an ultrasonic imaging apparatus. The method comprises: transmitting, at a first transmitting angle, first to third ultrasonic waves to a blood flow position to be measured of a target object so as to obtain a first projection component of a blood flow speed vector of said blood flow position on the first transmitting angle, wherein a first pulse repetition frequency is provided between the first ultrasonic wave and the second ultrasonic wave, a second pulse repetition frequency is provided between the second ultrasonic wave and the third ultrasonic wave, and a relationship between the first pulse repetition frequency and the second pulse repetition frequency is a non-integer multiple; transmitting, at a second transmitting angle, fourth to sixth ultrasonic waves to said blood flow position so as to obtain a second projection component of the blood flow speed vector of said blood flow position on the second transmitting angle, wherein a third pulse repetition frequency is provided between the fourth ultrasonic wave and the fifth ultrasonic wave, a fourth pulse repetition frequency is provided between the fifth ultrasonic wave and the sixth ultrasonic wave, and a relationship between the third pulse repetition frequency and the fourth pulse repetition frequency is a non-integer multiple.

DU YIGANG (CN)
DONG YONGQIANG (CN)

PCT/CN2022/117632

March 16, 2023

September 07, 2022

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SHENZHEN MINDRAY BIOMEDICAL ELECTRONICS CO LTD (CN)

A61B8/06

CN106102587A	2016-11-09
CN110613477A	2019-12-27
US20180085087A1	2018-03-29
CN106580372A	2017-04-26

P. C. & ASSOCIATES (CN)

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