Cardiovascular disease is one of the most important health threats in the world today. Accurate and timely diagnosis of cardiovascular disease is essential for the treatment and rehabilitation of patients. As a non-invasive and non-invasive detection equipment, medical ultrasonic scanner has become one of the key tools for cardiovascular disease diagnosis. This article will introduce how to use medical ultrasonic scanner to diagnose cardiovascular diseases in detail.

1、 Characteristics and working principles of medical ultrasound scanners

Medical ultrasound scanner is a device that utilizes the propagation characteristics of ultrasound in human tissues for imaging. Through the emission and reception of ultrasound, ultrasound scanners can obtain image information of the heart and blood vessels, helping doctors diagnose.

2、 The diagnostic value of echocardiography

Echocardiography is a commonly used method for examining the heart using medical ultrasound scanners. Through echocardiography, doctors can obtain the anatomical structure and movement of the heart, thereby evaluating its function and pathological changes. The following are the common applications of echocardiography in the diagnosis of cardiovascular diseases:

1. Heart structure: Through echocardiography, doctors can observe the size, shape, and anatomical structure of the heart, such as the heart cavity and valve, to evaluate the overall condition of the heart.

2. Cardiac function: Echocardiography can provide information about cardiac contraction and relaxation, such as Ejection fraction (EF) and myocardial flexibility. These parameters are crucial for evaluating myocardial function and cardiac pumping capacity.

3. Arterial and venous blood flow: Through Doppler technology in echocardiography, doctors can detect the speed and direction of arterial and venous blood flow, helping to evaluate issues such as vascular resistance, valve stenosis, and blood reflux.

4. Heart valve disease: Echocardiography can evaluate the function and abnormalities of heart valves. Doctors can observe the opening and closing of valves and detect the presence of diseases such as valve stenosis, degeneration, or reflux.

5. Myocardial disease: Echocardiography can evaluate the structure and function of myocardium, and help doctors find myocardial diseases, such as myocardial infarction, myocardial hypertrophy, Myocarditis, etc.

3、 The operational steps of echocardiography examination

Echocardiography examination is usually performed by experienced technicians or doctors. The following are the basic steps for echocardiography examination:

1. Preparation: Patients usually need to lie in bed or on the examination table and unbutton their tops so that the technician can better contact their chest. The technician will apply a layer of gel to the chest to help conduct ultrasonic waves.

2. Positioning: The technician will use an ultrasound probe to place it in a specific position on the chest, such as the left side of the sternum or the left subclavian area. By moving and rotating the probe, find the best heart image on the screen.

3. Image acquisition: Technicians will use probes to emit ultrasound and receive echo signals. By moving the probe at different positions and angles, technicians can obtain multiple cardiac images, including two-dimensional images, Doppler images, and hemodynamic parameters.

4. Analysis and diagnosis: The obtained images will be transmitted to the doctor, who will analyze and diagnose the images. Doctors will comprehensively consider factors such as the structure, movement, blood flow, and function of the heart to make an accurate diagnosis.

4、 Advantages and limitations of echocardiography

1. Advantages:

a. Non invasive: Echocardiography is a non-invasive examination method that does not cause any damage to patients.

b. High safety: Compared to other medical imaging technologies, ultrasound has no radiation and is safer for patients and medical staff.

c. Real time imaging: Echocardiography can observe the movement and blood flow of the heart in real-time, helping doctors make timely and accurate diagnoses.

2. Limitations:

a. Imaging quality depends on operator experience: The quality and diagnostic accuracy of echocardiography are influenced by the operator's experience and skill level.

b. Some lesions are difficult to display: certain lesions, such as small myocardial ischemia and coronary artery stenosis, may be difficult to visually display on echocardiography.

Summary:

The application of medical ultrasonic scanner in cardiovascular disease diagnosis has been widely recognized. Through the examination of echocardiography, doctors can obtain rich cardiac and vascular image information, help evaluate cardiac structure and function, detect abnormalities and lesions, and then develop reasonable treatment plans. The non-invasive and safety of echocardiography make it an ideal choice for cardiovascular disease diagnosis. However, in order to ensure accurate diagnostic results, it should be operated and interpreted by experienced doctors and technicians. In the future, with the continuous development and innovation of ultrasound technology, the application of medical ultrasound scanner in cardiovascular disease diagnosis will be more extensive and in-depth.