LifeBridge Health Department of Radiology > Specialties > Neurointerventional Radiology

Neurointerventional Radiology

Endovascular Treatment

Neurointerventional radiology is a subspecialty of radiology that uses imaging technology to provide minimally invasive treatment for a wide range of medical conditions.

Also known as endovascular treatment, this technique uses x-rays, MRIs and other imaging methods to guide small catheters into the body, usually through an artery or vein to treat internally at the source of the disease. Neurointerventional radiology is also used to insert stents or coils or to inject medication.

Among many other things, neurointerventional radiology is used to treat:

  • Strokes
  • Brain aneurysms and abnormal blood vessels
  • Cerebrovascular disease 
  • Carotid stenosis
  • Seizures
  • Benign and malignant tumors
  • Tinnitus

Division Chief

William W. Ashley, Jr., M.D., Ph.D., M.B.A., F.A.A.N.S.

William W. Ashley, Jr., M.D., Ph.D., M.B.A., F.A.A.N.S., is chief of the Division of Neurointerventional Radiology at LifeBridge Health. He specializes in diagnostic and interventional neuroradiology.

Dr. Ashley graduated from Stanford University with a degree in biology.He earned a medical degree as well as a doctoral degree in physiology and biophysics at the University of Illinois College of Medicine. He also completed an M.B.A. in health care administration from the Loyola University of Chicago. He then completed a neurosurgical residency at Barnes Jewish Hospital/Washington University School of Medicine in St. Louis, followed by a dual fellowship in cerebrovascular and endovascular neurosurgery at the University of Illinois at Chicago Medical Center.


At LifeBridge Health, we offer neurointerventional radiology procedures at Sinai Hospital.