Robert Patrick Liddell, M.B.B.Ch., M.S.
- Interim Divisional Director, Interventional Radiology
- Associate Professor of Radiology and Radiological Science
- Associate Professor of Oncology
By harnessing the power of advanced imaging (ultrasound, X-rays, CT scans, MRI scans and other innovative methods), our board certified interventional radiologists can diagnose and treat complex conditions—even cardiovascular disease and cancer—less invasively and with unprecedented precision.
Often times, IR provides numerous benefits to patients compared to open surgical techniques including shorter recovery time, less pain and reduced risk of complications.
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Appointments & Locations
Contact us to connect with our team of experts
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Conditions and Treatments
See what conditions we treat through minimally invasive procedures.
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Meet Our Experts
Learn about our interventional radiology specialists
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IR Residency
Apply to the Interventional Radiology (IR/DR) Residency program.
Procedure Spotlight
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Prostatic Artery Embolization
Prostatic artery embolization (PAE) is a minimally invasive treatment that helps improve lower urinary tract symptoms caused by a Benign Prostatic Hyperplasia.
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Uterine Fibroid Embolization
Fibroid tumors are noncancerous (benign) growths that develop in the muscular wall of the uterus. Fibroid embolization, also called uterine artery embolization, is done without surgery. It requires only a tiny nick in the skin about the size of a pencil tip
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Percutaneous Cholangioscopy
A percutaneous cholangioscopy procedure treats gallstones in the gallbladder, known as cholelithiasis, for patients who are not operative candidates for gallbladder removal.
Our Experts
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Christopher Ravi Bailey, M.D.
- Associate Program Director for IR/DR Residency
- Assistant Professor of Radiology and Radiological Science
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Christos Savvas Georgiades, M.D., Ph.D.
- Director of Interventional Oncology
- Professor of Radiology and Radiological Science
- Professor of Oncology
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Brian Philip Holly, M.D.
- Program Director, Interventional Radiology Integrated Residency
- Assistant Professor of Radiology and Radiological Science
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Majid Aziz Khan, M.B.B.S., M.D.
- Director, Non Vascular Spine Intervention
- Associate Professor of Radiology and Radiological Science
- Associate Professor of Neurosurgery
- Associate Professor of Otolaryngology - Head and Neck Surgery
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Robert Patrick Liddell, M.B.B.Ch., M.S.
- Interim Divisional Director, Interventional Radiology
- Associate Professor of Radiology and Radiological Science
- Associate Professor of Oncology
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Harjit Singh, M.D.
- Radiology Vice Chair for Clinical Affairs
- Professor of Radiology and Radiological Science
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Clifford Raabe Weiss, M.D.
- Director, the Johns Hopkins HHT Center of Excellence
- Medical Director, The Johns Hopkins Center for Bioengineering, Innovation and Design (CBID)
- Director, Interventional Radiology Research
- Director, the Johns Hopkins Vascular Anomalies Center (VAC)
- Professor of Radiology and Radiological Science
- Professor of Biomedical Engineering
Vascular and Interventional Radiology Physician Assistants
- Jessica Foltz
- Donald McCord
- William Morefield
- Kelsie Turk
- Amanda Smith
- Chelsea Rebholz
- Jessica Scudder
The Division of Interventional Radiology
Dr. Kelvin Hong provides an overview of the Division of Interventional Radiology within the Department of Radiology and Radiological Science. Physicians within the division perform image-guided diagnostic and therapeutic procedures for cardiovascular conditions as well as a broad range of services for patients with cancer, pain, diabetes, liver, kidney, and other conditions.