Nasopharyngeal cancer is a common malignant tumor, with unclear early symptoms and susceptibility to metastasis, posing great harm to patients. Therefore, early diagnosis is crucial for the successful treatment of nasopharyngeal carcinoma. Medical ultrasound scanners, as a non-invasive, easy to operate, and short examination time imaging examination method, have played an important role in the early diagnosis and evaluation of nasopharyngeal carcinoma. This article will introduce the application of medical ultrasound scanners in the diagnosis of nasopharyngeal carcinoma.

1、 The principle of ultrasonic scanner

Medical ultrasound scanners use the echoes of ultrasound to obtain information on the morphology and internal structure of human tissues. When an ultrasound pulse passes through human tissue, it will scatter and absorb inside the tissue, and return to the ultrasound scanner. The scanner converts the received ultrasound signal into an image and displays it on the screen. By observing and analyzing the image, doctors can evaluate the shape, size, density, and other information of the tissue, further determining whether the tissue is abnormal.

2、 The advantages of ultrasound in the diagnosis of nasopharyngeal carcinoma

1. High safety: The ultrasound scanner adopts non radiative ultrasound technology, avoiding the harm of X-ray radiation to patients, and is safe and non-invasive for patients.

2. Easy to operate: The ultrasound scanner is easy to operate, and doctors only need to place the probe close to the patient's nasopharynx to obtain relevant ultrasound images.

3. Strong real-time performance: Ultrasonic scanners can display scanned images in real time, allowing doctors to observe changes in the patient's nasopharyngeal area in a timely manner and make further judgments and diagnoses.

4. Easy to observe tissue structure: Ultrasound can visually display the tissue structure of the nasopharynx region. By observing the image, doctors can more accurately determine whether there are abnormalities such as tumors.

3、 Application of Ultrasound in Early Diagnosis of Nasopharyngeal Cancer

1. Application of high-frequency ultrasound: High frequency ultrasound scanners have higher resolution and better clarity, which can more clearly display the small structures of tissues. In the early diagnosis of nasopharyngeal carcinoma, high-frequency ultrasound can help doctors detect subtle changes in the nasopharyngeal area and improve the accuracy of early diagnosis.

2. Application of Color Doppler Ultrasound: Color Doppler ultrasound combines ultrasound and blood flow imaging technology to display the blood flow situation in the nasopharynx region. The blood flow perfusion of nasopharyngeal carcinoma is different from that of normal tissue. The application of color Doppler ultrasound can help doctors evaluate the blood supply of the tumor and further assist in the diagnosis of nasopharyngeal carcinoma.

3. Application of tissue elastography: Tissue elastography is a new technology in ultrasound scanners that can evaluate the hardness and elasticity of tissues. The elastic characteristics of nasopharyngeal carcinoma tissue are different from those of normal tissue. The application of tissue elastography can help doctors determine the malignancy of nasopharyngeal carcinoma.

Conclusion:

Medical ultrasound scanner, as a non-invasive, simple to operate, and short examination time imaging examination method, has unique advantages in the diagnosis of nasopharyngeal carcinoma. It can provide important information such as the tissue structure, blood flow, and elastic characteristics of the nasopharynx region for doctors, thereby helping them make early diagnosis and evaluation, and improving the success rate of treatment. However, the application of ultrasound also has certain limitations, such as difficulty in detecting deep tissues. With the continuous development of technology, it is believed that the application of medical ultrasound scanners in the diagnosis of nasopharyngeal carcinoma will become increasingly widespread, bringing more benefits to the health of patients.