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Interventional Radiology

Interventional Radiology


The mission of the Interventional Radiology Division at the University of Colorado Anschutz Medical Campus is to provide the best care to our patients, using innovative techniques across highly diversified medical and surgical subspecialties. We have aligned clinical, translational, and basic science research interests to support our mission of scientific inquiry and discovery.

Patient Care

The IR section, which performs approximately 9,000 procedures each year, consists of nine fellowship-trained interventional radiologists, and five dedicated mid-level providers. The IR service provides formal consultative services and an inpatient admission service, for adults as well as pediatric patients at the Children’s Hospital of Colorado (also on the Anschutz Medical Campus). In addition to performing the image-guided procedures, each IR physician runs a weekly outpatient clinic. Finally, the IR section participates in several weekly multidisciplinary conferences and clinics on the Anschutz Medical Campus.


We have a deep commitment to providing the highest quality trainee education at all levels, with a focus on developing future leaders in Interventional Radiology (IR). Our current residents log cases spanning the gamut of vascular, oncologic, hepatobiliary, dialysis, pain/palliative, genitourinary and gastrointestinal diseases. They also have the opportunity to gain experience in pediatric and neurointerventional procedures. Furthermore, they participate in multidisciplinary conferences, outpatient clinics and noninvasive vascular imaging.


The IR Division has an active and productive clinical, basic science, and translational research program, with significant intra- and extramural grant support. Specific areas of research include interventional oncology, portal hypertension management, intra/extracranial vascular malformation therapies, venous interventions, and hepatic transplant interventions. IR faculty also hold many leadership positions in national and regional societies, including presidency in three major professional organizations, as well as serving on many university and hospital committees.


Trivedi, Premal (250 x 300)

Premal Trivedi, MD

Interim Section Chief
Director, Health Services Research

Kondo - 250x300

Kimi Kondo, DO

Director , Integrated Interventional Residency Program

Lindquist, Jonathan (250 x 300)

Jonathan Lindquist, MD

Director of IR Quality and Patient Safety; Medical Director, Interventional Radiology

Marchak - 250x300

Katie Marchak, MD

Associate Program Director, Diagnostic Radiology Residency

McLennan, Gordon (250 x 300)

Gordon McLennan, MD

Vice Chair of Clinical Research

Walker, Lisa (250 x 300)

Lisa Walker, MD

Associate Program Director, IR Residency

Zlotchenko, George (250 x 300)

George Zlotchenko, MD

Medical Director, Highlands Ranch Hospital