The present invention relates to a method and system for estimating a transverse wave velocity, more preferably, after transmitting a first ultrasonic signal having a reference pulse to a region of interest of a subject, the first ultrasonic wave reflected from the region of interest Receiving a signal； Generating a reference image for the ROI based on the first ultrasound signal received by the ultrasound transducer； Transmitting the pushing pulse to the region of interest by the ultrasonic transducer and propagating the transverse wave by the displacement caused by the movement of tissue in the region of interest； Receiving a second ultrasound signal reflected from the region of interest after transmitting a second ultrasound signal having a tracking pulse to a region of interest where the ultrasound transducer propagates the transverse wave； Generating the tracking image that tracks the displacement of the tissue in the ROI based on the second ultrasound signal received by the ultrasound transducer； Comparing the tracking image with a reference image to detect at least one displacement of the tissue； Estimating a time of arrival of the transverse wave from at least one tissue displacement in which a time of arrival estimate has been detected； And estimating a velocity of the transverse wave based on the detected tissue displacement and the arrival time of the estimated transverse wave. With such a configuration, the method and system for estimating the transverse wave velocity of the present invention, and the method and system for diagnosing a trans-tissue lesion using the same, can easily estimate the transverse wave velocity according to the tissue displacement of the subject, It is possible to accurately grasp the elasticity of the tissue.본 발명은 횡파 속도를 추정하는 방법 및 시스템에 관한 것으로서, 보다 바람직하게는 초음파 변환자가 피검체의 관심영역으로 기준 펄스를 갖는 제1 초음파 신호를 송신한 후, 상기 관심영역으로부터 반사된 제1 초음파 신호를 수신하는 단계； 영상생성부가 상기 초음파 변환자가 수신한 제1 초음파 신호에 기초하여 상기 관심영역에 대한 기준 영상을 생성하는 단계； 상기 초음파 변환자가 상기 관심영역으로 푸싱
