Research of 3D segment model of left ventricle muscle based on ultrasonic image

Objective Providing a visual and effective tool to study the mechanical movement of cardiac muscle, for the sake of diagnose and therapy of heart and vessel diseases. Methods In the article, a type of standard 3D model that ignores the anatomical structure of left ventricle is proposed. The model divides the left ventricular muscles into 16 segments and each segment has 3 sub-layers. Through the bridge of segments in functional mapping, image registration is used to mapping the velocity of Doppler tissue velocity (DTV) image to the standard model. With the advantage of multi-view and multi-lay of 3D model, the local movement characteristic and the transmission direction of velocity can be observed clearly. Results As can be seen from the result of mapping velocity information of the standard model, the color of inside-lay is bright and the middle-lay is dim. From the encoding mode of image, it is concluded that the more it is close to endocardium, the quicker the muscle velocity is. This can prove the validity and visualization of our model. Conclusion The model proposed in the article can reflect the local movement of cardiac muscles effectively and visually, and can realize the difference contrast of velocity of the same segments but different layers.