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Updated: Feb 13, 2026

A Murine Model of Subarachnoid Hemorrhage
Published on: November 21, 2013
Gadolinium-Based Contrast Agent Extravasation Mimicking Subarachnoid Hemorrhage After Electroconvulsive Therapy
Onur Taydas1, Hayri Ogul2, Halil Ozcan3
1Department of Radiology, Erzincan University Mengücek Gazi Training and Research Hospital, Erzincan, Turkey.
Background:
Electroconvulsive therapy (ECT) is a safe method that has been applied for many years in medical treatment-resistant depression treatment. In this case report, contrast extravasation due to deterioration of the blood-brain barrier after ECT mimicking subarachnoid hemorrhage (SAH) on magnetic resonance imaging (MRI) is discussed.
Case Description:
A 70-year-old male patient who underwent ECT presented with sulcal hyperintensities suggesting subarachnoid hemorrhage on fluid-attenuated inversion recovery sequence of MRI obtained after ECT. However, there was no evidence to suggest SAH on nonenhanced brain computed tomography.
Conclusion:
It should be kept in mind that patients may have contrast extravasation due to deterioration of the blood-brain barrier after ECT, and other alternative methods should be used for the diagnosis of SAH in these patients, not MRI.
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