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Catheter-based Clot Images

These sample images are from patients successfully treated with catheter-based Intra-arterial thrombolysis (IAT).

These blood clots were removed by a catheter. The catheter in this procedure, called Merci Retriever, is made by Concentric Medical. This catheter was given approval by the FDA in August 2005. This approval gave Concentric Medical authorization to develop its Merci Retriever structure, which helps do away with blood clots in patients' brains who are having an ischemic stroke.

For more information and a viewable web video on catheter-based blood clot removal, please visit Concentric Medical Merci Retriever.

Patient 1
Catheter-based clot extraction image
Merci Retriever
Catheter-based clot extraction image
Clot
Catheter-based clot extraction image
Clot

Patient 2
Catheter-based clot extraction image
Clot
Catheter-based clot extraction image
Baseline
Catheter-based clot extraction image
After IAT

Patient 3
Catheter-based clot extraction image
Clot
Catheter-based clot extraction image
Baseline
Catheter-based clot extraction image
After IAT

Mechanical Thrombectomy
Catheter-based clot extraction image
Catheter-based clot extraction image

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In the News

The MGH Neurology Department placed 4th in US News Neurology / NeuroSurgery rankings for 2014-15.

Educational Video

Still from the Stroke Evaluation simulation

This video simulation of an Emergency stroke evaluation illustrates the care of patients with acute stroke by the MGH Acute Stroke team.