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It's Movement Monday!

Good morning, Aortic Hope community! We are continuing our series on the different specialists you may meet during your aortic disease journey. Last time we talked about vascular surgeons, who often work in parallel with cardiac surgeons to treat disease of the aorta.


Today we are talking about a specialist many patients do not meet until something urgent happens: the interventional radiologist.



What Is an Interventional Radiologist?

An interventional radiologist (often shortened to "IR" by other healthcare professionals) is a doctor who uses imaging (such as X-rays, ultrasound, and CT scans) to perform procedures through tiny incisions, usually no bigger than a small puncture in the skin. Instead of large surgical openings, they use thin tubes called catheters threaded through blood vessels to reach almost any part of the body.


For patients with aortic disease, interventional radiologists often play a critical role behind the scenes, especially when complications arise.


The Path to Becoming an Interventional Radiologist

The training pathway for interventional radiology is rigorous and combines two distinct skill sets: image interpretation and minimally invasive procedures.


1. Medical School (4 years) Like all physicians, interventional radiologists begin with four years of medical school.


2. Internship Year (1 year) Most complete a year of general medical or surgical training before starting radiology.


3. Radiology Training (4-5 years) There are now two main pathways:

  • Integrated Residency (5 years): A newer combined program where trainees learn both diagnostic radiology and interventional radiology together.

  • Traditional Pathway: Four years of diagnostic radiology residency followed by 1-2 years of dedicated IR fellowship.


By the time an interventional radiologist completes training, they have typically spent 10 or more years training after college, with deep expertise in both reading complex imaging and performing image-guided procedures.


What makes IR unique is that these physicians are not only highly skilled proceduralists, but they are also expert image interpreters. They can read your CT scan, identify exactly what is happening, and then immediately use that information to plan and perform a treatment.



When Do You See an Interventional Radiologist?

Interventional radiologists are involved in aortic care in several important ways:


The Acute Setting: When Time Matters Most

This is where interventional radiologists truly shine. In emergencies, they can often treat life-threatening problems through small puncture sites rather than major surgery. Some of the situations where they are critical:


Bleeding Complications After Stent Grafts

After an endovascular aortic repair (EVAR for the abdomen or TEVAR for the chest), small leaks called endoleaks can sometimes develop. While many endoleaks are managed conservatively, some require treatment.

Interventional radiologists can navigate small catheters into these tiny vessels and embolize them, essentially blocking off the leak by placing coils, plugs, or special glue-like materials. This stops the leak without requiring open surgery.



Visceral Ischemia from Aortic Dissection

When an aortic dissection occurs, the tear can extend down the aorta and disrupt blood flow to vital organs like the kidneys, liver, and intestines. This is called visceral malperfusion, and it is a true emergency.

Interventional radiologists can perform two key procedures to restore blood flow:


  • Stenting: Placing a small mesh tube into a branch artery (like the artery to the kidney or intestines) to open it back up

  • Fenestration: Creating a small opening between the two channels of the dissected aorta (the true and false lumens) to equalize pressure and restore blood flow to organs


These procedures can be life-saving and they happen through a small puncture in the groin rather than open surgery.


Diagnostic Expertise

Even outside of procedures, interventional radiologists are expert image interpreters. They often help your team understand exactly what is happening on complex imaging studies, which is especially valuable when planning treatment for unusual or complicated cases.


Working Alongside Other Specialists

In modern aortic care, interventional radiologists often work side-by-side with vascular surgeons, cardiothoracic surgeons, and cardiologists. Many aortic centers now have hybrid operating rooms which are specialized spaces that combine advanced imaging with surgical capabilities where these teams collaborate on complex cases. This team-based approach means you get the right expertise for your specific situation.


The Bottom Line


Interventional radiologists are the specialists who can often solve difficult problems through tiny puncture sites rather than open surgery. Their unique training makes them invaluable in both emergency situations and complex elective cases.


For aortic patients, they are particularly important when complications arise: bleeding around stent grafts, malperfusion from dissections, or other urgent issues that need to be addressed quickly and precisely.


Next week we will introduce another specialist on your aortic care team.


Until then, Think Aorta!

Jack

 
 
 
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