About Us | Dotter Department of Interventional Radiology
Our people

Reka Laakso, BSN
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
- Program Director, Dotter Department of Interventional Radiology
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Areas of interest
- Deep Vein Thrombosis
- Central Venous Occlusion
- Superficial Venous Disease
- Uterine Artery Embolization
- Gonadal Vein Embolization
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Professor of Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine
- Director, Pacific Northwest Hereditary Hemorrhagic Telangiectasia (HHT) Center of Excellence, Dotter Interventional Institute, Interventional Radiology, School of Medicine
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Areas of interest
- HHT
- Pulmonary arteriovenous fistula (PAVF)
- Pulmonary arteriovenous malformation (PAVM)
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Professor of Neurological Surgery, Division of Skull Base and Cerebrovascular, School of Medicine
- Head, Neurological Surgery, Division of Skull Base and Cerebrovascular, School of Medicine
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Appointments and titles
- Instructor of Interventional Radiology, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
- Section Chief of IR Metro
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Areas of interest
- Interventional Radiology
- Portal Vein Hypertension
- Vascular Malformation
- Interventional Neuroradiology
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Appointments and titles
- Instructor of Interventional Radiology, School of Medicine
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Appointments and titles
- Associate Professor of Interventional Radiology, School of Medicine
- Assistant Program Director, Dotter Department of Interventional Radiology
- Associate Director, Pacific Northwest Hereditary Hemorrhagic Telangiectasia (HHT) Center of Excellence, Dotter Interventional Institute
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Areas of interest
- Vascular Malformations
- Hereditary Hemorrhagic Telangiectasia
- Prostate Interventions
- Women's Interventions
- Portal Hypertension
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Appointments and titles
- Professor of Interventional Radiology, School of Medicine
- Frederick S. Keller Professor
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Appointments and titles
- Professor of Interventional Radiology, School of Medicine
- Cook Professor of Interventional Therapy, Otolaryngology - Head and Neck Surgery, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Instructor of Interventional Radiology, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Areas of interest
- Portal venous reconstruction
- Trauma
- Medical education
- Medical device design.
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Appointments and titles
- Assistant Professor of Neurological Surgery, Division of Skull Base and Cerebrovascular, School of Medicine
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Areas of interest
- Deep Vein Thrombosis
- Gastrointestinal/Genitourinary Procedures
- Gonadal Vein Embolization
- Hepatobiliary Disease
- Peripheral Arterial Disease
- Prostatic Artery Embolization
- Pulmonary Embolism
- Uterine Fibroid Embolization
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Appointments and titles
- Professor of Interventional Radiology, School of Medicine
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Areas of interest
- Pediatric and Adult Neurointervention of the brain, head and neck, and spine
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
- Assistant Professor of Biomedical Engineering, School of Medicine
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Areas of interest
- Interventional Oncology
- Thyroid Ablation
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Appointments and titles
- Associate Professor of Interventional Radiology, School of Medicine
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Areas of interest
- Interventional Oncology
- Hepatobiliary Procedures
- Thrombectomy for Deep Vein Thrombosis and Pulmonary Embolism
- Complex IVC filter retrieval and reconstruction
- Gastrointestinal/Genitourinary procedures
- Uterine Fibroids
- Peripheral Arterial Disease
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Appointments and titles
- Associate Professor of Interventional Radiology, School of Medicine
- Section Chief of IR Neuro
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Appointments and titles
- Associate Professor of Interventional Radiology, School of Medicine
- Section Chief of IR Body
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Areas of interest
- Renal ablation
- Venous Sampling
- Dialysis Access Interventions
- Portal Hypertension
- Trauma embolization
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Appointments and titles
- Instructor of Interventional Radiology, School of Medicine
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Areas of interest
- Pediatric and Adult Neurointervention of the brain, head and neck, and spine
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Appointments and titles
- Associate Professor of Interventional Radiology, School of Medicine
- Assistant Program Director, Dotter Department of Interventional Radiology
- Section Chief of IR VA
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Appointments and titles
- Instructor of Interventional Radiology, School of Medicine
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Appointments and titles
- Associate Professor of Interventional Radiology, School of Medicine
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Areas of interest
- Interventional Oncology
- Complex Hepatobiliary and Portal Hypertension Interventions
- Gastrointestinal and Genitourinary Interventions
- Deep Venous Thrombosis
- IVC filters
- Pulmonary Embolism
- Dialysis Interventions
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Appointments and titles
- Assistant Professor of Interventional Radiology, School of Medicine
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Our history

It was at OHSU that Dr. Melvin Judkins developed the transfemoral technique for selective coronary arteriography. This technique, introduced in the mid 1960s, has since been used worldwide.
Judkins also developed the "Cobra" catheter at OHSU. Dr. Vincent Hinck developed catheters for femorocerebral angiography at OHSU in the late 1960s.
Dr. Josef Rösch, a colleague of Dr. Dotter since 1967, developed the technique of transjugular intrahepatic portosystemic shunt (TIPS) in 1968. Rösch also introduced embolic treatment of gastrointestinal bleeding and popularized transjugular liver biopsy in the early 1970s.
Since the early 1980s, Dr. Rösch has collaborated on the development of expandable metallic stents and their multiple uses. He was also a co-developer of the technique for selective fallopian tube catheterization introduced at OHSU in the mid-1980s.
The Department's roots can be traced the early 1980s, to discussions between Dr. Dotter and Mr. William Cook, President of Cook Group. They were concerned about the future of interventional radiology and the need for high-quality interventional training for all interested radiologists and other physicians, technologists and nurses.
Mr. Cook continued these discussions with Dr. Rösch in the mid and late 1980s at various interventional meetings.
In April 1989, Mr. Cook took action.
At the 25th anniversary of Dotter's first transluminal angioplasty and after a meeting with Dr. Peter Kohler, then-president of OHSU, Mr. Cook announced the donation of $2 million dollars to establish an interventional institute as a multidisciplinary center directed toward education, research and patient care in interventional treatment.
In June 2017, the Dotter Institute became a department within the School of Medicine: the Dotter Department of Interventional Radiology. Read more about this and the department's history.