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Radiologists are doctors who use medical imaging to diagnose and treat health problems.

  • Diagnostic radiologists use X-ray, CT scan, dual-energy X-ray absorptiometry (DEXA), fluoroscopy (a moving picture X-ray), MRI and ultrasound to find injuries and illnesses.
  • Vascular and interventional radiologists study the blood vessels. Their techniques to find blockage, bleeding, swelling or tumors, and reduce pain sometimes can be alternatives to surgery.
  • Interventional neuroradiologists study the brain and spine. They use angioplasty to treat aneurysms, strokes and other conditions that affect blood supply to the brain.




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Source: American Board of Medical Specialties; American Medical Association; Joint Commission on Accreditation of Healthcare Organizations, Lexicon: Dictionary of Health Care Terms, Organizations and Acronyms for the Era of Reform, 1994

First published: 08/01/2004
Last updated: 06/16/2014

Reviewed by: Geoffrey Bodeau, MD, Consulting Radiologists, Ltd.; Brent R Bullis, MD, Consulting Radiologists, Ltd.