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This article is professionally consulted by Dr., Dr. Tran Nhu Tu - Dean and Master, Doctor Lam Thi Kim Chi - Department of Diagnostic Imaging - Vinmec Danang International HospitalMagnetic resonance is not only the most modern fast and accurate imaging method today, but it also plays a very important role in the examination and treatment of liver diseases at an early stage.
1. How does the liver magnetic resonance imaging work?
Magnetic resonance imaging is a non-invasive, safe and non-toxic, non-irradiated survey method, especially they provide high accuracy and reliability, providing clear and detailed images. of solid organs. Therefore, the liver magnetic resonance imaging has high value in diagnosis and monitoring of lesions in the liver, biliary tract even with the technique of liver magnetic resonance without contrast injection. On the other hand, if there is injection of non-specific contrast agent, this technique has more added value. However, for a deeper diagnosis, a closer approach to the anatomical and pathological lesions of the liver, especially distinguishing hepatocellular adenomas from hemangiomas, focal nodular hypertrophy, and malignant hepatocellular carcinoma metastases,... will use contrast agents specific for hepatocytes.
Liver magnetic resonance imaging is a factor contributing to the decision of conservative or surgical treatment. Contrast used in magnetic resonance imaging is less likely to cause allergic reactions like iodinated contrast agents used in CT-scans or X-rays.
Chụp cộng hưởng từ giúp phát hiện và chẩn đoán chính xác các bệnh lý về gan
2. Indications and contraindications for liver magnetic resonance imaging
2.1 Indications for magnetic resonance imaging to detect liver damage
Describe the characteristics of liver damage such as fatty liver, cysts, primary liver tumors, hemangiomas, focal nodular hyperplasia. Assess the extent of liver metastatic damage Liver vascular diseases Diffuse liver diseases such as steatosis, iron deposition Assess the degree of cirrhosis Infections Evaluate treatment response Congenital abnormalities Pathologies Iron-contaminated liver, Thalassemia Donor liver in liver transplant 2.2 Contraindications Absolute contraindications:
Patients bring electronic devices such as: cochlear implant, pacemaker, anti-vibration machine,. .. Metal surgical forceps <6 months Severe patients need side-by-side resuscitation equipment Relative contraindications for people with metal surgical forceps >6 months.
Bệnh nhân chụp cộng hưởng từ không được mang theo các thiết bị điện tử
3. Steps to conduct liver magnetic resonance imaging
The steps to conduct a liver magnetic resonance imaging are as follows:
Patients are advised how to breathe at the request of the technician to avoid artifacts and make a more accurate diagnosis.
Total survey time is about 25 minutes. Commonly used pulse sequences are SE, STIR T2W in horizontal and vertical cross-section, and T1W before drug investigation. Dynamic study after injection of magnetic contrast agent in the following phases: arterial, portal, equilibria and late phase after 20 minutes. The copper and phase opposite GRE pulse sequences used for fat detection were examined before injection. Diffusion technique (DWI) is currently being studied and applied in cancer to assess tumor stage and response to treatment. Magnetic resonance imaging of the liver is the most advanced method of liver examination today, and is a high-value magnetic resonance technique with high value in liver diseases. Currently, liver cancer ranks third in the world, in which the most common is hepatocellular carcinoma, so the examination and early recognition of the disease is very important. However, in order to get the most accurate results when performing a liver magnetic resonance imaging, you should choose reputable addresses and hospitals that support modern MRI machines and own an examination room that meets the standards of the Ministry of Health. medical conditions, and at the same time have a team of qualified and experienced doctors, in order to receive the most accurate results for quick treatment, without leaving dangerous complications later.
Vinmec International General Hospital is the first unit in Southeast Asia to put into use the new 3.0 Tesla Silent MRI machine from the US manufacturer GE Healthcare.
The machine currently applies the safest and most accurate magnetic resonance imaging technology available today, without using X-rays, non-invasive. Silent technology is very beneficial for patients who are young children, the elderly, patients with weak health or have just had surgery.
To schedule an MRI scan at Vinmec with today's most modern magnetic resonance machine system, you can immediately contact the nearest Vinmec International General Hospital facility system, or register for a medical examination. online HERE.
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