M-mode echocardiogram

M-type ultrasound diagnostic apparatus (also known as echocardiograph) can display the movement of certain organs in the human body, and is mainly used for the diagnosis of cardiovascular diseases. The probe is fixed to a certain part of the heart. As the heart regularly contracts and relaxes, the distance between the various layers of the heart and the probe will change accordingly. On the screen, there will be a swinging up and down as the heart beats. A series of bright spots. When the scanning line moves at a constant speed from left to right, the bright spots that swing up and down expand laterally, showing the activity curve of the tissue structure of the heart during the cardiac cycle, that is, M-mode echocardiography. M-mode echocardiography can be used to analyze the trajectory of high-speed movements such as heart wall thickness, movement speed, amplitude, slope, and valves. Due to the small amount of information in the structure of the single sound beam detection, it is difficult to fully display the changes in the structure of the heart and the spatial adjacency. With the widespread application of two-dimensional echocardiography and other new methods, M echocardiography is no longer used alone in the diagnosis of modern cardiovascular diseases, but it can still be used as an important auxiliary diagnostic method for widespread use.