What is the role of echocardiography in the evaluation of posterior cerebral artery (PCA) stroke?

Updated: Jul 30, 2018
  • Author: Erek K Helseth, MD; Chief Editor: Helmi L Lutsep, MD  more...
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Transthoracic echocardiography (TTE) is used routinely to investigate possible cardiac sources of embolus. Transesophageal echocardiography (TEE) is a more sensitive test. It is more effective than TTE at identifying valvular lesions, aortic arch atheroma, and interatrial shunts. Patent foramen ovale and any abnormal anatomy associated with it (such as atrial septal aneurysms) are more frequently detected by TEE.

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