Tissue parameter detection method and system

Abstract

The invention provides a tissue parameter detection method and system. The method comprises the steps that an exciting device is controlled to excite N shearing waves with the different exciting characteristics in the tissue by taking a preset time interval as a period, and a first ultrasonic transducer is controlled to transmit ultrasonic signals corresponding to all the shearing waves to the tissue in each period; ultrasonic echo signals corresponding to all the shearing waves are received through the first ultrasonic transducer; the propagation characteristic parameters of all the shearing waves are acquired according to the ultrasonic echo signals corresponding to all the shearing waves; the tissue parameters are obtained through calculation according to the propagation characteristic parameters of the N shearing waves with the different exciting characteristics. According to the tissue parameter detection method and system, the N shearing waves with the different exciting characteristics are excited, responses of the tissue to all the shearing waves are different, therefore, the more accurate tissue parameters can be measured and obtained, and the tissue parameter measuring precision and sensitivity are improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a tissue parameter detection method and system. Background technique [0002] Tissue parameters such as elasticity of biological tissue are closely related to the characteristics of lesions, which have important reference value for the diagnosis of diseases. Therefore, taking the elastic parameters of tissues as an example, elastic detection techniques for non-destructive elastic detection of viscoelastic media such as human liver have been widely used in recent years. [0003] At present, when testing tissue parameters such as elasticity, a single excitation characteristic is often used to excite shear waves in the tissue, and the tissue parameters are obtained by analyzing and processing the propagation characteristics of the shear wave in the tissue. The parameters can be characterized by the propagation characteristic parameters of the shear wave. [000...

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Problems solved by technology

[0004] The above-mentioned method of measuring tissue parameters through a single shear wave propagation characteristic is difficult to guarantee the accuracy, measurement accuracy, and sensitivity of the tissue parameters obtained by measurement.

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