The most common ultrasound manifestations of cardiomyopathy are as follows: 1. Dilated cardiomyopathy. Ultrasound images show that one or both ventricles are dilated, the atria are enlarged, and the amplitude of motion of the left ventricular wall, especially the interventricular septum, is significantly reduced, and the patient will experience weakness, fatigue, chest pain, and other manifestations of left cardiac insufficiency.2. Hypertrophic cardiomyopathy. Ultrasound images show that the myocardium of the left ventricle is uniformly thickened or limited hypertrophy, the amplitude of the septal motion is reduced, and the amplitude of other motions of the left ventricular wall is enhanced, and patients may have clinical symptoms such as exertional dyspnea, angina pectoris, or fainting, etc. 3.Restrictive cardiomyopathy. Ultrasound images show that the myocardial echogenicity of the left ventricle is uneven, showing granular or speckled changes, the inner diameter of the left ventricle is normal or reduced, and patients may have clinical symptoms such as angina pectoris, arrhythmia and heart failure.