With the continuous development of medical technology, ultrasound scanners, as a non-invasive diagnostic tool, have gradually been widely used in the diagnosis of liver cancer. This article will provide a detailed introduction to the basic principles, technical characteristics, and application of ultrasound scanners in the diagnosis of liver cancer.

1、 The basic principles of ultrasonic scanners

Ultrasonic scanners use ultrasound to image human tissues, and its basic principle is to obtain image information by utilizing the reflection and attenuation of ultrasound between different tissues. The ultrasonic scanner consists of three parts:

launcher

The transmitter is the core part of an ultrasonic scanner, which can generate high-frequency (usually 2 to 18MHz) ultrasound. Ultrasound is converted into mechanical vibrations through a transmitter, and then enters the body through the skin.

reflector

Reflectors refer to various tissues and organs of the human body, where ultrasound is reflected at their boundaries and captured by the receiver on the return journey. According to different material densities and structural characteristics, their reflection intensity and time of ultrasound vary, so we can judge the properties of body tissues based on the reflection situation.

receiver

The receiver is responsible for converting the reflected signal into an electrical signal and handing it over to the computer for processing. After processing, the computer can generate a clear and accurate image of the human body structure.

2、 Technical characteristics of ultrasonic scanners

Compared to other medical imaging technologies such as X-ray and CT, ultrasound scanners have the following unique technical characteristics:

Non invasive

Ultrasonic scanners do not require puncture or injection of large doses of radioactive substances, therefore they will not cause damage to human tissues.

High security

Ultrasonic scanners use sound waves instead of electromagnetic waves, so they do not generate ionizing radiation on the human body and have higher safety.

Easy to operate

Ultrasonic scanners are simple to use, do not require special equipment or venues, and have a short examination time, making them suitable for widespread application in various medical institutions.

Low cost

Compared to other medical imaging technologies, ultrasound scanners have lower equipment and material costs, making them suitable for medical institutions of various economic levels.

3、 Application of ultrasound scanner in the diagnosis of liver cancer

Liver cancer is a serious tumor disease, and early detection is crucial for treatment and prognosis. Ultrasonic scanners can clearly display information such as size, shape, position, quantity, and blood flow inside the liver based on differences in liver tissue structure. Therefore, they play an irreplaceable role in early detection, localization, classification, and evaluation of liver cancer surgical treatment effectiveness.