When to Order Imaging for Radiologic Management of Gastric Varices: ACR Appropriateness Decoded

When to Order Imaging for Radiologic Management of Gastric Varices: ACR Appropriateness Decoded

It’s late in the evening, and a patient with known liver cirrhosis presents with hematemesis. Their blood pressure is dropping, and you’ve initiated resuscitation and contacted gastroenterology for an emergent endoscopy. As the on-call physician, you also consider the interventional radiology options that might be required if endoscopy fails or for long-term control. The patient will need cross-sectional imaging to delineate the portal venous anatomy, but the key question is which definitive procedure to plan for: a Transjugular Intrahepatic Portosystemic Shunt (TIPS), Balloon-occluded Retrograde Transvenous Obliteration (BRTO), or another intervention? Making the right call depends on the patient’s liver function, the variceal anatomy, and the presence of shunts. This article decodes the American College of Radiology (ACR) Appropriateness Criteria for the radiologic management of gastric varices to guide your decision-making process.

What Does ACR Radiologic Management of Gastric Varices Cover?

This ACR guideline, developed by the Expert Panel on Interventional Radiology, focuses on the management of bleeding from gastric varices, a severe complication of portal hypertension. The criteria evaluate the appropriateness of various minimally invasive and surgical procedures based on specific clinical scenarios. The scope includes patients with both cirrhotic and non-cirrhotic portal hypertension (e.g., from splenic vein occlusion). Scenarios are differentiated by factors critical to treatment selection, such as the patient’s liver function (quantified by the Model for End-Stage Liver Disease or MELD score), the presence of hepatic encephalopathy, and the specific venous anatomy identified on imaging, particularly the presence or absence of a spontaneous gastrorenal shunt. The guideline addresses acute bleeding situations and secondary prophylaxis. It does not cover the primary prophylaxis of gastric varices that have not yet bled, nor does it focus primarily on esophageal varices, though some overlap exists.

What Imaging Should I Order for Radiologic Management of Gastric Varices? Recommendations by Clinical Scenario

Choosing the optimal management for gastric varices is highly dependent on the individual patient’s clinical status and vascular anatomy. The ACR provides guidance tailored to these nuances.

For a typical cirrhotic patient with active bleeding from large, high-flow gastric varices and a large gastrorenal shunt on CT, management options are broad if liver function is relatively preserved (e.g., MELD score of 12-14). In this context, the ACR rates BRTO, Endoscopic management, and TIPS as Usually appropriate. The choice often depends on institutional expertise and treatment goals. BRTO directly obliterates the varices, while TIPS decompresses the entire portal system. Endoscopy provides immediate hemostasis but may have a higher re-bleeding rate without definitive follow-up.

However, liver function is a critical modifier. For a similar patient with a high MELD score of 20, or a MELD of 18 with pre-existing hepatic encephalopathy, the appropriateness of TIPS decreases. In these cases of poor liver function, TIPS is rated as May be appropriate due to the significant risk of worsening hepatic encephalopathy. BRTO and Endoscopic management remain Usually appropriate, as BRTO does not divert portal flow from the liver and may even improve encephalopathy by closing a large spontaneous shunt.

The presence of a suitable shunt is the key determinant for BRTO. For a cirrhotic patient bleeding from gastric varices where imaging does not demonstrate a gastrorenal shunt, BRTO is considered Usually not appropriate. In this scenario, the primary options for portal decompression and variceal control are TIPS and Endoscopic management, both of which are rated Usually appropriate. This also applies to patients with both esophageal and gastric varices not amenable to endoscopy, where TIPS is the preferred intervention and rated Usually appropriate.

Finally, the underlying cause of portal hypertension dictates the strategy. For a patient with gastric variceal bleeding from chronic splenic vein occlusion, the problem is localized (“sinistral” portal hypertension). Systemic therapies are not indicated; therefore, TIPS and BRTO are Usually not appropriate. Instead, targeted treatments like Splenic vein recanalization, Partial splenic embolization, and Surgical management (splenectomy) are all Usually appropriate. In complex cases of chronic portal vein occlusion with cavernous transformation, the technically demanding procedure of Portal vein recanalization plus TIPS is rated Usually appropriate.

ACR Imaging Recommendations Table

Adult vs. Pediatric Radiologic Management of Gastric Varices Imaging: Radiation Dose Tradeoffs

The current ACR guidelines for radiologic management of gastric varices do not provide distinct recommendations or relative radiation level (RRL) designations for pediatric patients. However, the underlying principles of radiation safety, particularly ALARA (As Low As Reasonably Achievable), are critically important when considering these procedures for children. Interventions like TIPS, BRTO, and splenic embolization are guided by fluoroscopy, which involves ionizing radiation. The cumulative radiation dose is a significant concern in younger patients due to their longer life expectancy and increased radiosensitivity of developing tissues.

The etiologies of portal hypertension in children also differ from adults, with conditions like biliary atresia and extrahepatic portal vein obstruction being more common than cirrhosis. These differences can influence anatomical considerations and procedural choices. While the fundamental techniques are similar, any decision to proceed with an interventional radiology procedure for pediatric gastric varices requires a careful, multidisciplinary discussion that weighs the acute risks of bleeding against the long-term risks of radiation exposure, with every effort made to minimize fluoroscopy time and dose.

Imaging Protocol Details for Radiologic Management of Gastric Varices

Once you have determined the most appropriate intervention based on the clinical scenario, executing it with a standardized, high-quality protocol is essential for success and safety. Our library contains detailed, step-by-step guides for numerous interventional radiology procedures, covering patient preparation, technique, and post-procedure management. While this article focuses on selecting the right procedure, our protocol guides help ensure it’s done right. For an example of the detailed procedural content available, see our guide on:

• IR Management of Acute PE (CDT, Embolectomy)

Tools to Help You Order the Right Study

Navigating complex clinical guidelines can be challenging, especially under pressure. GigHz provides a suite of tools designed to support evidence-based clinical decision-making at the point of care.

For clinical questions beyond the radiologic management of gastric varices, the ACR Appropriateness Criteria Lookup provides instant access to the full library of ACR guidelines, covering thousands of clinical scenarios across all imaging modalities. To ensure the selected study is performed correctly, the Imaging Protocol Library offers detailed, step-by-step protocols for a wide range of diagnostic and interventional procedures. When procedures involving ionizing radiation are necessary, the Radiation Dose Calculator can help you estimate and track cumulative exposure, facilitating informed discussions with patients about the risks and benefits of imaging.

What is the main difference between BRTO and TIPS for treating gastric varices?

TIPS (Transjugular Intrahepatic Portosystemic Shunt) is a decompressive procedure that creates a shunt within the liver, connecting the portal vein to the hepatic vein. This lowers pressure throughout the entire portal venous system, treating both gastric and esophageal varices but carrying a risk of worsening hepatic encephalopathy. In contrast, BRTO (Balloon-occluded Retrograde Transvenous Obliteration) is an obliterative procedure. It involves accessing a spontaneous shunt (usually a gastrorenal shunt) to directly sclerose and thrombose the gastric varices, which stops the bleeding without decompressing the portal system. BRTO can sometimes improve encephalopathy by closing a large portosystemic shunt.

Why is a large gastrorenal shunt important for BRTO?

The BRTO procedure relies on having a venous pathway to access the gastric varices retrogradely (i.e., backwards from the systemic circulation). A large, naturally occurring gastrorenal shunt provides a direct route from the left renal vein into the gastric varices. An interventional radiologist can navigate a catheter through this shunt, inflate a balloon to block outflow, and inject a sclerosant to obliterate the varices. Without a suitable shunt, the procedure is not technically feasible, making it “Usually not appropriate” in those patients.

How does a high MELD score affect the choice between TIPS and BRTO?

A high MELD score (e.g., >18-20) signifies advanced liver dysfunction. Placing a TIPS in such a patient can be risky because it diverts a significant amount of portal blood flow away from the liver parenchyma. This can precipitate or worsen hepatic encephalopathy and accelerate liver failure. For this reason, the ACR rates TIPS as only “May be appropriate” in patients with high MELD scores. BRTO does not divert portal flow and may be a safer and preferred option in these patients, provided the anatomy is suitable.

When is endoscopic management considered a first-line option?

Endoscopic management, most commonly with the injection of a tissue adhesive like cyanoacrylate glue, is a critical first-line therapy for achieving immediate hemostasis in an acute gastric variceal bleed. It is rated “Usually appropriate” in nearly all acute bleeding scenarios. While highly effective at stopping active bleeding, it may not be as durable as other treatments, with a risk of re-bleeding. Therefore, it is often used as a bridge to a more definitive secondary prophylaxis procedure, such as BRTO or TIPS, to prevent recurrence.

What causes gastric varices in the absence of cirrhosis?

While cirrhosis is the most common cause, gastric varices can also result from non-cirrhotic portal hypertension. A primary example is chronic splenic vein occlusion, often caused by pancreatitis, abdominal trauma, or a pancreatic tumor. This condition blocks blood flow from the spleen, causing a localized increase in pressure in the short gastric and gastroepiploic veins that drain into it. This is known as “left-sided” or “sinistral” portal hypertension and leads to the formation of isolated gastric varices without the generalized portal hypertension or liver dysfunction seen in cirrhosis.

Reviewed by Pouyan Golshani, MD, Interventional Radiologist — May 12, 2026