Color Doppler ultrasound of liver vessels

The article is professionally consulted by MSc, BS. Dang Manh Cuong - Doctor of Radiology - Department of Diagnostic Imaging - Vinmec Central Park International General Hospital. The doctor has over 18 years of experience in the field of ultrasound - diagnostic imaging.

Doppler ultrasound of blood vessels is a very valuable imaging method to help evaluate vascular lesions in terms of anatomical morphology, hemodynamic changes, thereby helping clinicians make indications for treatment of edema. fit.
Special color Doppler ultrasound provides important information about the tumor such as: whether the tumor is vascularized or not, how the blood vessels around the tumor are. However, with small cancerous tumors, ultrasound helps guide the way for diagnostic biopsy. In addition, Doppler ultrasound is also used for post-treatment management of liver disease, including liver transplantation and transjugular intrahepatic portal-portal bypass (TIPS).

Indications for liver Doppler ultrasound in the following cases:
Liver tumors. Suspected liver vascular abnormality Cirrhosis Liver failure Heart failure Treatment must be monitored.

Cirrhosis . Doppler ultrasound findings of advanced cirrhosis include liver atrophy, nodular margin, slow portal vein flow, and large bowel volvulus dilatation of the hepatic artery.
Increased portal pressure. Doppler ultrasound for portal venous flow reversal. This is a characteristic sign of portal hypertension and often appears in patients with advanced liver disease seen in cirrhosis, liver tumors,... Port-aortic collateral circulation. Ultrasonographic manifestations of portal hypertension include splenomegaly, increased portal vein diameter, and clear visualization of portal vena cava vessels. Varicose veins can cause major complications such as gastrointestinal bleeding and hepatic encephalopathy.

Gastroesophageal varices. Identifying varicose veins of the gastro-oesophageal system is important, as this is the cause of massive, life-threatening bleeding. Spectral and color Doppler ultrasonography of portal vein flow within those veins helps confirm the diagnosis. The vein adjacent to the umbilicus. The paraumbilical vein is a common portal-host collateral vessel that is easily detected by color Doppler ultrasonography, especially in cases of alcoholic cirrhosis. Portal vein thrombosis. Causes of portal vein thrombosis: portal hypertension, cirrhosis, enteritis, diverticulitis, enteritis, pancreatitis, trauma causing intra-abdominal infection causing bleeding Dehydration, umbilical cord inflammation are factors risk factors for portal vein thrombosis in young children. Hepatocellular carcinoma is the most common cause of malignant thrombosis. Hepatocellular carcinoma usually encloses the portal vein, but rarely causes malignant thrombosis. Color Doppler ultrasound image of portal vein thrombus is an echogenic tissue causing dilatation of the venous lumen, which may be hypoechoic or empty and the lumen has a normal diameter, especially in the case of acute thrombosis. Simple.

Budd-Chiari syndrome. Budd-Chiari syndrome is detected when grayscale ultrasound does not show hepatic veins. There are also thickened hepatic vein walls, irregular diameter of the veins, and tortuous collateral veins. Evaluation of an intrahepatic portal-host shunt after transthoracic stenting. TIPS ultrasound can be difficult due to cirrhosis, atrophy so the stent is located deep in the liver. TIPS dysfunction detected by color Doppler ultrasound of the hepatic vessels manifests as decreased velocity in the portal venous body. Vinmec International General Hospital is one of the hospitals that not only ensures professional quality with a team of leading doctors, modern equipment and technology, but also stands out for its examination and consulting services. and comprehensive, professional medical treatment; civilized, polite, safe and sterile medical examination and treatment space.
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