What is liver ultrasound?

We all know that if there is a problem with the internal organs of the body, when we go to the hospital for examination, we often need to do B-ultrasound. Through B-ultrasound, we can observe whether there is any abnormality in the operation of various organs in the body. Liver diseases can also be checked through B-ultrasound, but now there is a method of examination called liver ultrasound angiography. So what exactly is this liver ultrasound angiography?

1. Ultrasound angiography for liver cancer, also known as acoustic angiography, is a technology that uses contrast agents to enhance backscattered echoes, significantly improving the resolution, sensitivity and specificity of ultrasound diagnosis.

2. Ultrasound contrast imaging technology is often used for the diagnosis and differential diagnosis of liver tumors. The diagnostic process is as follows: After the space-occupying lesions of the liver are found on an ordinary ultrasound machine, ultrasound contrast agent is injected through a peripheral vein to observe the internal enhancement of the liver space-occupying lesion within a few minutes. Since the blood supply characteristics of malignant liver tumors are different from those of benign lesions, the difference in ultrasound enhancement can be used to diagnose and differentially diagnose malignant liver tumors.

3. Currently, ultrasound contrast imaging has been widely used in the detection and qualitative diagnosis of solid organ tumors. It is superior to conventional ultrasound and spiral CT in many aspects. Especially in detecting sub-centimeter lesions less than 1 cm, the diagnostic ability of acoustic contrast imaging is better than or at least has the same sensitivity as spiral CT. Compared with spiral CT and MRI, acoustic angiography has more advantages, such as good safety, no allergic reaction, real-time, and relatively low examination cost.

3. Ultrasound angiography can dynamically observe the dynamic changes of blood flow in the arterial phase, portal venous phase, and delayed phase of liver masses, and diagnose and identify liver masses based on the characteristic manifestations of various masses.

The above is the information about liver ultrasound angiography. It turns out that liver ultrasound angiography is a more accurate examination method than B-ultrasound. It uses the scattered echo phenomenon of contrast agents to examine and diagnose liver lesions, especially for the diagnosis of liver tumors. It can find out whether the liver tumor is benign or malignant, which is of great significance for the treatment of liver diseases.