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Cerebrovascular Disease

Cerebrovascular disease includes all disorders in which an area of the brain is temporarily or permanently affected by a blockage of blood flow to the brain (ischemia) or bleeding into the brain (hemorrhage) by one or more of the cerebral blood vessels in the brain. Cerebrovascular disease includes stroke, carotid stenosis (narrowing of the carotid artery), vertebral stenosis (narrowing of the vertebral artery) and intracranial stenosis, aneurysms, and vascular malformations. Strokes occur when blood flow is restricted due to vessel narrowing (stenosis), clot formation (thrombosis), blockage (embolism) or blood vessel rupture (hemorrhage) or lack of sufficient blood flow (ischemia) affecting brain tissue.

Minimally invasive endovascular neurosurgery refers to treating vascular diseases in the brain using microcatheters that are inserted into an artery and passed up into the brain where tiny devices can be placed to open blocked vessels or divert blood flow away from an aneurysm.

Neurosurgical Conditions Treated:

  • Endovascular
  • Stroke
  • TIA
  • AVM
  • AVF
  • Aneurysm
  • Carotid Disease
  • ECIC bypass

Meet Our Physicians

Elad I. Levy

MD MBA FACS FAHA, Chairman

Clinical Team

Neuroendovascular & Stroke

Skull Base Disorders

Spinal Disorders

Jason M. Davies

MD PhD

Clinical Team

Neuroendovascular & Stroke

Adnan H. Siddiqui

MD PhD FACS FAHA FAANS

Clinical Team

Neuroendovascular & Stroke

Kenneth V. Snyder

MD PhD FAANS

Clinical Team

Neuroendovascular & Stroke

Gamma Knife

Neurosurgery Trauma

Rosalind Lai

MD FCNS

Clinical Team

Neuroendovascular & Stroke

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Publications | July 10, 2026

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Turnover Time in Neuroangiography Suites: Comparison Between Cases Performed at an Ambulatory Neurosurgery Center Versus a Tertiary Hospital

In the News | October 16, 2026

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UB Researcher Awarded NIH Grant for Cardiovascular Imaging Technology

A UBNS research scientist received his first R01 grant to develop novel X-ray imaging technology for imaging blood flow to diagnose and treat ischemic heart disease. Members of UBNS and UB Cardiovascular Medicine are participating...

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UBNS Residency Program

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