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The NCH Advantage • Expertise

NCH Interventional Radiologists

  • An interventional radiologist is a medical doctor who specializes in minimally invasive, targeted treatments. They offer the most in-depth knowledge of the least invasive treatments available, coupled with diagnostic and clinical experience across all specialties.
  • Interventional radiologists are board certified radiologists fellowship trained in percutaneous (through the skin) interventions using guided imaging. They use X-rays, MRI and other imaging to advance a catheter in the body, usually in an artery, to treat the disease non-surgically.
  • As the inventors of angioplasty and the catheter-delivered stent, first used in the legs to treat peripheral arterial disease, interventional radiologists pioneered minimally invasive modern medicine.

What do Interventional Radiologists do?

Interventional radiologists can perform a variety of procedures to improve your health:

  • Angiography - an X-ray of the arteries and veins to detect blockage or narrowing of the vessels. In many cases, the interventional radiologist can treat the blockages, such as those occurring in the arteries in the legs or kidneys, by inserting a small stent which inflates and opens the vessel. This procedure is called a balloon angioplasty.
  • Angioplasty - the use of a small balloon on the tip of a catheter inserted into a blood vessel to open up an area of blockage inside the vessel.
  • Embolization - the insertion of a substance through a catheter into a blood vessel to stop hemorrhaging, or excessive bleeding.
  • Intravascular ultrasound - the use of ultrasound inside a blood vessel to better visualize the interior of the vessel in order to detect problems inside the blood vessel.
  • Stent placement - a tiny, expandable coil, called a stent, is placed inside a blood vessel at the site of a blockage. The stent is expanded to open up the blockage.
  • Foreign body extraction - the use of a catheter inserted into a blood vessel to retrieve a foreign body in the vessel.
  • Needle biopsy - a small needle is inserted into the abnormal area, guided by imaging techniques, to obtain a tissue biopsy. This type of biopsy can provide a diagnosis without surgical intervention. Examples of this procedure are the fine or core needle breast biopsy.
  • Blood clot filters - a small filter is inserted into a blood clot to catch and break up blood clots.
  • Catheter insertions – a catheter is inserted into large veins for giving chemotherapy drugs, nutritional support, and hemodialysis. A catheter may also be inserted prior to bone-marrow transplantation.
  • Cancer treatment - administering cancer medications directly to the tumor site.

NCH’s Interventional Radiologists include:

  • Dr. Evan Oblonsky
    Board Certified in Diagnostic Radiology
    Certificate of Added Qualification in Vascular and Interventional Radiology.
    Current interests include Uterine Fibroid Embolization
  • Dr. Jonathan Barker
    Board Certified in Diagnostic Radiology
    Certificate of Added Qualification in Vascular and Interventional Radiology
    Currents interests include Kyphoplasty and Vertebroplasty.
  • Dr. Brad Melliere
    Board Certified in Diagnostic Radiology
    Certificate of Added Qualification in Vascular and Interventional Radiology.
    Current interests include Chemoembolization and Radiofrequency (RF) ablation.
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Last Updated 04/10/2009