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Related Experiment Video

Updated: Jul 11, 2026

Induction of Cerebral Arterial Gas Embolism in Rat

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Published on: October 18, 2024

Cerebral air embolism: acute imaging.

K L Weiss¹, K J Macura, A Ahmed

¹Department of Radiology, The Medical College of Georgia, Augusta, GA, USA.

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association

|September 27, 2007

Summary

Computed tomography (CT) and magnetic resonance imaging (MRI) can detect iatrogenic cerebral air embolism. Diffusion-weighted MRI is particularly effective for identifying acute infarctions caused by air embolism, complementing CT findings.

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Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia

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Published on: September 20, 2015

Area of Science:

Neurology
Radiology
Medical Imaging

Background:

Iatrogenic cerebral air embolism is a rare but serious complication.
Accurate and timely diagnosis is crucial for patient outcomes.
Conventional imaging techniques may have limitations in detecting early ischemic changes.

Purpose of the Study:

To evaluate the utility of computed tomography (CT) and magnetic resonance imaging (MRI) in the acute diagnosis of iatrogenic cerebral air embolism.
To compare the effectiveness of different MRI sequences, including diffusion-weighted imaging (DWI), in detecting cerebral infarction secondary to air embolism.

Main Methods:

A case of iatrogenic cerebral air embolism following right subclavian vein recatheterization was studied.
Acute imaging was performed using computed tomography (CT) and various magnetic resonance imaging (MRI) sequences.
Diffusion-weighted imaging (DWI), T2-weighted fluid-attenuated inversion recovery (FLAIR), and turbo gradient spin echo (TGSE) sequences were utilized.

Main Results:

CT demonstrated intravascular air but with potentially misleading attenuation values.
Diffusion-weighted MRI (DWI) clearly identified hyperintense acute infarctions in the affected vascular territories 8.5 hours postprocedure.
T2-weighted FLAIR and TGSE MRI sequences did not reveal these acute ischemic changes.

Conclusions:

The combination of CT and diffusion-weighted MRI (DWI) is considered ideal for the acute evaluation of suspected cerebral air embolism.
DWI is a sensitive technique for detecting early ischemic changes in cerebral air embolism, offering advantages over conventional T2-weighted sequences.