One of the ways to diagnose the disease, both in the past and now, is to check the stiffness of the body parts. Stiffening of any body part can be caused by many different diseases. The most important of them are cancers. In the past, it was possible to check the stiffness of organs through physical examination and palpation (only for external body parts, not possible for internal organs). Currently, with the help of elastography, it is possible to take pictures of the internal organs of the body.

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How is elastography a method?

Elasticity or stiffness (Stiffness) is a biological and mechanical feature of a soft tissue that depends on its molecular components and internal structure. Tissue stiffness of human body organs is related to their physiological and pathological processes. In very distant years, the amount of stiffness of the tissue can be detected by touching it with the hand, which is the first diagnostic tool for some diseases. For example, by manually examining the breast, you can touch and identify the lumps inside the breast.

After the surgical techniques were developed and before the imaging methods were advanced, surgeons would open the organ and find the pathological lesion and by touching and pressing it, they would estimate how hard and malignant the lesion was according to their experience. As medical science progressed, a method called needle sampling was invented. Needle sampling was an invasive method and entailed risks such as: pain and bleeding, severe complications and even the death of the patient.

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What is the difference between elastography and fibroscan?

For the first time in the world, a company in France made an elastography device, which it named Fibroscan. Fibroscan takes a still image of the liver and can measure liver fibrosis. In the past several years, real-time elastography has been developed with very advanced ultrasound devices that allow moving imaging of the liver. Because liver elastography has been known as fibroscan since the beginning, many clinical experts are only familiar with the name fibroscan and the word elastography is unknown to them.

Why is liver elastography necessary?

Millions of people around the world struggle with liver cirrhosis. The most common cause of death after cancer in America is related to gastrointestinal and liver diseases. The symptoms of liver disease are different, some people have no symptoms and some people have many symptoms. 90% of liver patients do not have any special symptoms in the first ten years. But as the process of destruction and deterioration of the liver increases, the patient faces the complications of liver cirrhosis such as: bleeding from esophageal varices, brain tissue disorders, accumulation of fluid in the abdomen, etc. Therefore, one should be very careful that fibrosis does not turn into cirrhosis. and started treatment earlier. One of the reliable diagnostic methods is liver fibrosis elastography.

What are liver elastography techniques?

Liver elastography techniques are generally divided into two parts:

• Elastography of the liver based on waves (Shear Wave)
• Elastography of the liver based on tension (Stain Based)

Liver elastography based on waves (Shear Wave)

This method is performed using a device called fiber scan. which is the first method of liver elastography. With this device, it is possible to obtain the amount of liver fibrosis, and for this reason, it is known as fibroscan.

Liver elastography based on waves (Shear Wave)

There are two mechanisms available to measure shear wave speed:

1. (Vibration-Controlled Transient Elastography (VCTE
). Acoustic Radiation Force Impulse Based Elastography (ARFI).

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Why is the assessment of liver fibrosis vital?

1. The treatment of patients with hepatitis B and C depends on the degree of fibrosis.
2. The more advanced the fibrosis, the less likely the liver will improve.
3. If in the early stages of fibrosis, the patient takes medicine and is treated, there is a possibility of the return of fibrosis.

In what cases should liver elastography be performed?

• Viral hepatitis
• Fatty liver
• Elastography in liver masses
• Other matters of elastography

Preparations before liver elastography

In liver elastography or fibroscan, the patient is not admitted and has no pain or bleeding. It takes maybe 10 minutes and is done on an outpatient basis. The answer to this examination and test will be delivered to the patient quickly. The only thing to note here is that the patient should fast for 8 to 12 hours. And it may also be necessary for the patient to perform tests for a more accurate interpretation of elastography results. href="https://twitter.com/intent/tweet?text=%D8%A7%D9%84%D8%A7%D8%B3%D8%AA%D9%88%DA%AF%D8%B1%D8%A7%D9%81%DB%8C+%DA%A9%D8%A8%D8%AF&url=https://dr-afzalaghaie.ir/elastography-of-disease/"> Twitter LinkedIn Pinterest Viber Share by email

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