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Updated: Apr 24, 2026

Endovascular Perforation Model for Subarachnoid Hemorrhage Combined with Magnetic Resonance Imaging MRI
Published on: December 16, 2021
Rat endovascular perforation model
1Departments of Neurosurgery and Neurosciences, Mount Sinai School of Medicine, 1 Gustave L. Levy Place, New York, NY, 10029, USA, Fatima.Sehba@mssm.edu.
Abstract:
Experimental animal models of aneurysmal subarachnoid hemorrhage (SAH) have provided a wealth of information on the mechanisms of brain injury. The rat endovascular perforation (EVP) model replicates the early pathophysiology of SAH and hence is frequently used to study early brain injury following SAH. This paper presents a brief review of historical development of the EVP model and details the technique used to create SAH and considerations necessary to overcome technical challenges.

