
Interventional Radiology
The Section of Interventional Radiology within the Department of Radiology is committed to providing the finest diagnostic and therapeutic radiology services for University Hospital patients. As part of this commitment, the department is actively involved in research into new diagnostic and treatment modalities, including clinical research projects in most areas of imaging.
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About Interventional Radiology
Interventional radiology is a medical specialty that has been called “The Surgery of the 21st Century.” Just like other medical specialists interventional radiologists are doctors who have many years of special training after medical school. This training includes radiation safety as well as the use of X-rays and other imaging techniques (radiology) that “see” inside the body without surgery. These physicians also undergo extensive training in techniques that treat diseases percutaneously (through the skin). Using radiologic images to guide their procedures, interventional radiologists insert thin tubes (catheters) and other tiny instruments through the blood vessels and other pathways of the body to treat a wide variety of conditions that once required surgery.
How small is small? Interventional radiologists make a small nick in the skin and insert their tiny instruments through the nick. But how small is small? Remarkably, most incisions are no larger that the lead tip of a pencil! No stitches are needed.
A Recognized Medical Specialty
In 1992, the American Medical Association and the Health Care Financing Administration of the U.S. Department of Health and Human Services officially recognized interventional radiology as a separate medical specialty. Today, there are more than 4,000 interventional radiologists in the United States.
Training
In 1992, the American Medical Association and the Health Care Financing Administration of the U.S. Department of Health and Human Services officially recognized interventional radiology as a separate medical specialty. Today, there are more than 4,000 interventional radiologists in the United States.
Patient Care
In 1992, the American Medical Association and the Health Care Financing Administration of the U.S. Department of Health and Human Services officially recognized interventional radiology as a separate medical specialty. Today, there are more than 4,000 interventional radiologists in the United States.
Interventional radiologists admit patients to the hospital and have the necessary clinical care skills to manage each patient’s care. Interventional radiologists work closely with a patient’s primary care or other physician to be sure the patient receives the best possible care.
Some advantages of interventional radiology:
- Risk, pain, and recovery time are significantly reduced in many cases.
- Many procedures can be performed without an overnight stay in the hospital.
- General anesthesia is usually not required.
- Procedures are often less expensive than the surgical alternatives.

Section Leadership and Members
Section Chief
Section Faculty
Administration
Section Members in Leadership Roles
- Dania Daye, MD, PhD; Vice Chair of Practice Transformation; Director of the Center for High Value Imaging
- Mark Kleedehn, MD; Program Director for Interventional Radiology Residency
- Erica Knavel-Koepsel, MD; Co-Chair, Women Professionals in Radiology
Research Initiatives
The Interventional Radiology Section is actively involved in a variety of research interests. Current projects include:
- Comparison of MR, DSA, and catheter directed CTA to evaluate morphology of vascular stenosis
- Evaluation of CTA perfusion studies in measuring post-PTA vascularization
- Evaluation of US parameters in assessing TIPS patency and function
- Selective Internal Radiation Therapy – review of side effects, complications and early treatment response
