Interventional radiology (IR) involves minimally invasive procedures performed by specialized physicians who use imaging like ultrasound, CT, and fluoroscopy for guidance. These techniques play a role in the diagnosis and management of various liver conditions. Through image-guided methods, interventional radiologists access and address issues within the liver and its associated blood vessels and ducts. Here’s more information on interventional radiology and how it can improve liver disease treatment outcomes:
What Is Liver Disease?
Liver disease refers to a range of conditions that affect the liver’s structure or function. Liver disease may develop into a chronic health condition, and it generally progresses through four main stages. Each stage increases in severity and damage to the liver. Here are the four liver disease stages:
- Hepatitis: This earliest stage is characterized by swelling or inflammation of liver tissues, often caused by infection, toxins, or autoimmune conditions. While the liver remains functional at this stage, prolonged inflammation leads to more severe damage if left untreated.
- Fibrosis: Chronic inflammation can cause fibrosis, where scar tissue begins to form. This scarring replaces healthy liver tissue, impairing the liver’s ability to function properly. Early intervention during this stage may often prevent further progression and even reverse some effects.
- Cirrhosis: Cirrhosis occurs when liver scarring becomes widespread, significantly disrupting functioning. At this stage, symptoms like jaundice, fluid retention, and fatigue may become evident, and the risk of further complications increases.
- Liver Failure: The most advanced stage of liver disease involves extensive liver damage, where the organ no longer performs its major functions. This often requires urgent medical treatment, including the possibility of a liver transplant.
Radiology provides a way for diagnostic and therapeutic liver procedures. Diagnostic radiology and interventional radiology serve distinct yet complementary roles in the field of medical imaging and treatment.
How Is Liver Disease Diagnosed?
Diagnostic radiology focuses on identifying diseases and conditions through non-invasive imaging techniques, such as X-rays, CT scans, MRIs, and ultrasounds. These images provide detailed insights into the internal structures of the body, allowing physicians to diagnose and monitor a wide range of medical issues accurately. While diagnostic radiology is centered on analysis and detection, interventional radiology combines imaging expertise with precise, hands-on interventions.
Interventional radiology uses imaging to guide minimally invasive procedures for treatment or biopsy purposes. Interventional liver procedures typically involve the use of catheters, wires, and other small instruments. These radiology specialties offer an integrated approach to managing and treating complex medical conditions.
Liver Biopsies
Diagnostic techniques like ultrasound-guided liver biopsy enable the collection of tissue samples, which are analyzed to determine the presence and extent of liver damage. A transjugular liver biopsy is a procedure where a physician accesses the liver through the circulatory system. A catheter is inserted into a large vein in the neck and carefully guided into the veins of the liver using imaging. Once in position, a small needle can be passed through the catheter to obtain a tissue sample for laboratory analysis.
Angiography
Angiography is an imaging technique that visualizes blood vessels, and it is performed by injecting a contrast agent while using fluoroscopy or CT imaging. A physician can selectively place a catheter in the circulatory system to obtain detailed images of the liver’s vascular system. This procedure provides valuable information about blood flow and vessel structure that can assist a patient’s care team in understanding their condition.
How Is Liver Disease Treated?
Radiology provides several treatment options for liver-related conditions. These procedures are selected based on a patient’s specific situation and after evaluation. Some treatments focus on the portal venous system by removing blood clots or placing stents to keep vessels open. Portal veins directly link the gastrointestinal tract to the liver. The liver processes the blood from the portal veins before returning it to the rest of the circulatory system through its hepatic veins.
When there are issues with blood filtering due to a damaged liver, it may cause portal hypertension. Portal hypertension is a condition characterized by abnormally high blood pressure within the portal venous system. This elevated pressure can lead to serious complications, including the formation of varices, fluid accumulation in the abdomen, and reduced liver function.
During a transjugular intrahepatic portosystemic shunt (TIPS) procedure, an interventional radiologist will use imaging to guide them as they connect a hepatic vein to a portal one with a stent. TIPS treatments redirect blood flow and reduce high pressure in the portal veins by bypassing the damaged liver. Other procedures are available for different types of liver disease.
Schedule an Interventional Radiology Consultation
Liver disease has four primary stages, and may be reversible up to a certain point. If your healthcare provider determines that an interventional radiology procedure may be appropriate, they can refer you for a consultation. To prepare for this appointment, you should gather your medical history, a list of current medications, and relevant imaging studies. Contact a radiologist today for a liver evaluation.
