Interventional Radiology (IR) is a medical specialty that uses image guidance to perform minimally invasive, often life-saving, procedures that are an alternative to surgery.

Interventional radiologists with patient

Customized Diagnosis and Treatment

Penn Interventional Radiology is a national leader in research, education and patient care. Our renowned program is one of the largest in the country and provides services at a variety of locations throughout the Philadelphia area.

Procedures and Services

Interventional radiology (IR) is a field of medicine that utilizes the most advanced technology available to perform image-guided procedures to treat a wide variety of diseases throughout the body. As the inventors of angioplasty and the catheter-delivered stent, interventional radiologists pioneered modern minimally invasive medicine. Interventional radiology treatments minimize risk, require little to no incisions, are generally performed with sedation rather than general anesthesia, and more importantly have less pain and recovery time than conventional surgery. Interventional radiologists see and treat patients with a variety of health conditions, forming long-lasting patient-physician relationships. Your interventional radiologist will work closely with your primary care or other physician to be sure you receive the best possible care.

Conditions Treated by Interventional Radiologists

The Interventional Radiology Division offers the diagnosis and treatment of a variety of diseases using minimally invasive techniques. Many conditions that previously required traditional open surgery can now be treated with small catheters or other devices guided by radiologic imaging, allowing for a faster recovery, and a less costly procedure.

Conditions treated include:

  • Acute and chronic deep vein thrombosis
  • Diseases of the lymphatic system
  • Hereditary Hemorrhagic Telangiectasia (HHT)
  • Pulmonary arteriovenous malformations
  • Endoleaks from abdominal aortic aneurysms
  • Cancer (liver, kidney, bone and lung)
  • Peripheral arterial disease/critical limb ischemia (CLI)
  • Vascular malformations/varicose and spider veins
  • Women's health conditions (eg. uterine fibroids, pelvic congestion syndrome)
  • Hemodialysis access dysfunction

Here are a few of the minimally invasive techniques used:

  • Liver directed tumor therapy (chemoembolization/radioembolization/tumor ablation)
  • Uterine artery embolization (UAE)
  • Varicocele embolization
  • Transjugular intrahepatic portosystemic shunts
  • IVC filter placement/complex IVC filter removal
  • DVT thrombolysis
  • Laser ablation for varicose veins
  • Arterial revascularization

Convenient Access to Cutting-Edge Expertise

As one of the oldest and largest IR programs in the United States, we are committed to offering our patients personalized and compassionate care at a variety of locations throughout the Philadelphia area.

In addition to the over 12,000 procedures we perform annually, Penn Interventional Radiology has an inpatient admitting service, inpatient consult service and daily outpatient consultation and follow-up clinic.

Patient Events

Learn more about events sponsored by Interventional Radiology.

Procedures and Services

We offer the full spectrum of interventional radiology care, including inpatient admitting service, inpatient consultation service, and daily outpatient consultation and follow-up clinic.


Penn Interventional Radiology physicians provide comprehensive diagnosis and treatment for the full spectrum of image-guided, minimally invasive procedures.

Scott O. Trerotola, MD, FACR

Division Chief, Interventional Radiology; Vice Chair, Quality, Radiology; Professor of Radiology in Surgery; Stanley Baum Professor of Radiology

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