Carotid artery stenosis is a common disease, mainly due to the formation of carotid intima plaque and vasoconstriction, can lead to cerebrovascular disease and other serious consequences. The ultrasound scanner is a non-invasive instrument that can be used to diagnose carotid stenosis. This paper will discuss the application of ultrasonic scanner in the diagnosis of carotid artery stenosis.

I. Diagnosis of carotid artery stenosis by ultrasound scanner

Carotid ultrasound is the preferred method for diagnosing carotid artery stenosis, and ultrasound scanner is a widely used device for carotid artery ultrasound. It measures the speed and resistance of blood flow in the carotid arteries and jugular veins in the neck, as well as the status and thickness of the vascular walls in the neck. From this data, the ultrasound scanner can detect the extent and location of carotid artery narrowing.

Ultrasound scanners can help doctors determine the internal diameter, shape, blood flow rate and smoothness of the carotid artery. At the same time, it can also detect the intimal thickness and subintimal section area of carotid artery stenosis, as well as the vascular resistance index and blood flow at the stenosis. These parameters can help doctors determine the condition of blood vessels, judge the severity of stenosis, and provide important reference information for the treatment of stenosis.

Two, the advantages of ultrasonic scanner

1. Safe and non-invasive

Compared with other medical devices, ultrasound scanners can perform non-invasive tests without any surgical procedures, without damaging body tissues or causing any harm to the body, and can even be used for testing pregnant women, so they have a very high level of safety.

2. Be clear and reliable

Ultrasonic scanners have the characteristics of high resolution, can clearly and truly reflect the internal condition of the human body, so as to provide reliable detection results. At the same time, the ultrasonic scanner has the feature of real-time imaging, which can observe the dynamic changes of the subject in real time. This is very important for the study and evaluation of the carotid artery.

3. Simple operation

The ultrasound scanner is very simple to operate and requires no special preparation or testing by the client. Simply place the probe on the subject's neck and the procedure can be quickly and easily done. In addition, the ultrasound scanner can record multiple photos, videos and other data, which is convenient for doctors to conduct follow-up analysis and processing.

3. Application of ultrasonic scanner in stenosis degree evaluation

Ultrasound scanners can help doctors assess the severity of carotid stenosis. It can quantitatively analyze the severity of stenosis by measuring the internal diameter of the carotid artery and its variation range, the area and length of the stenosis area, and the intimal thickness. In addition, ultrasound scanners can compare the condition of the contralateral carotid artery to determine the degree and location of carotid artery stenosis.

According to the degree of stenosis, carotid artery stenosis can be classified into three categories: mild, moderate, and severe. Carotid artery diameter was less than 50% for mild stenosis, 50% ~ 70% for moderate stenosis, and more than 70% for severe stenosis. Through the measurement and evaluation of ultrasonic scanner, the carotid artery stenosis can be scientifically judged and classified.

Iv. Conclusion

As an efficient carotid ultrasound examination equipment, ultrasonic scanner has become the preferred diagnostic method for carotid artery stenosis due to its non-invasive, reliable, clear and simple operation. It can be used to assess the severity, location and shape of carotid artery stenosis, which has important reference value for the prevention and treatment of this common vascular disease. Although ultrasound scanners have been widely used in the diagnosis of carotid artery stenosis, further research on their performance and operation is still necessary to meet the medical community's demand for efficient, accurate and safe disease diagnosis.