With the continuous development of medical technology, medical ultrasound scanners are playing an increasingly important role in preoperative evaluation of colorectal cancer. This article will delve into the advantages, applications, and limitations of medical ultrasound scanners in preoperative evaluation of colorectal cancer, in order to help doctors and patients better understand and utilize this technology.

1、 The advantages of medical ultrasound scanners

Non invasive: Medical ultrasound scanners use high-frequency sound waves to image organs, which do not generate radiation and therefore do not cause harm to the human body.

Real time dynamic imaging: Medical ultrasound scanners can dynamically display the movement and blood flow of organs in real time, allowing doctors to observe subtle changes in the organs and diagnose the condition more accurately.

Multi angle imaging: Medical ultrasound scanners can image organs from multiple angles, which helps doctors discover the accurate location and range of lesions.

Convenience: Medical ultrasound scanners are easy to operate, quick to check, and can obtain results in a short period of time, thus providing timely treatment for patients.

2、 Application of medical ultrasound scanner in preoperative evaluation of colorectal cancer

In preoperative evaluation of colorectal cancer, medical ultrasound scanners can provide the following information:

The depth of tumor infiltration: By observing the relationship between the tumor and surrounding organs, doctors can determine the depth of tumor infiltration and determine the scope and method of surgery.

Lymph node metastasis: Medical ultrasound scanners can detect swollen lymph nodes, indicating the possibility of metastasis, which has important guiding significance for the selection of surgical plans.

The situation of adjacent organs: Through multi angle imaging, doctors can understand the involvement of adjacent organs and avoid damage to normal tissues during surgery.

Assessing the surgical adaptability of patients: For some special patients, such as obesity, comorbidities with other diseases, medical ultrasound scanners can help doctors determine the surgical adaptability and risk of patients.

3、 Limitations of medical ultrasound scanners in preoperative evaluation of colorectal cancer

Although medical ultrasound scanners have significant advantages in preoperative evaluation of colorectal cancer, they also have certain limitations:

Limitations for obese patients: For obese patients, the imaging effect of ultrasound may be affected because adipose tissue has a blocking effect on the propagation of sound waves. This limits the application of ultrasound in obese patients.

Limitations of deep lesions: Ultrasound may have certain difficulties in detecting deep lesions, as sound waves may experience scattering and attenuation during propagation.

High technical requirements: The operation of medical ultrasound scanners requires certain technical requirements, and different doctors may obtain different results. Therefore, in order to ensure the accuracy of diagnosis, it is necessary to provide professional training to doctors.

Relying on patient cooperation: Medical ultrasound scanning requires patient cooperation, and if the patient cannot tolerate the pressure or discomfort of the probe, it may affect the examination results.

Limited detection of very small foreign objects: Due to the physical properties of sound waves, medical ultrasonic testing may be limited for very small foreign objects, especially objects smaller than a few millimeters.

4、 Conclusion

In summary, medical ultrasound scanners play an important role in preoperative evaluation of colorectal cancer. It can provide information such as the depth of tumor infiltration, lymph node metastasis, and the condition of adjacent organs, helping doctors formulate surgical plans. However, there are also certain limitations, such as limited detection for obese patients, deep lesions, very small foreign objects, high technical requirements, and reliance on patient cooperation. Therefore, when using medical ultrasound scanners for preoperative evaluation of colorectal cancer, doctors need to choose appropriate examination methods based on the specific situation of the patient, and at the same time, comprehensive judgments should be made on the examination results to ensure the accuracy of diagnosis. With the continuous development of medical technology, it is believed that the application of medical ultrasound technology in preoperative evaluation of colorectal cancer will be further optimized and improved.