Cardiac CT Imaging for Ischemic Stroke: Current and Evolving Clinical Applications.

Area of Science:

• Cardiology
• Neurology
• Radiology

Background:

• Ischemic stroke has diverse causes, with 20-40% originating from cardiac or aortic sources.
• Transesophageal echocardiography (TEE) is the standard for identifying cardioembolic sources.
• Cardiac CT technology has advanced, offering potential for evaluating cardioembolic sources.

Purpose of the Study:

• To review the clinical applications of cardiac CT in ischemic stroke patients.
• To focus on diagnosing cardioembolic sources and cardiovascular risk assessment.
• To compare cardiac CT with TEE for detecting stroke origins.

Main Methods:

• Review of studies comparing cardiac CT and TEE for cardioembolic source detection.
• Evaluation of cardiac CT's role in risk stratification for stroke patients.
• Assessment of cardiac CT's ability to diagnose concurrent coronary artery disease.

Main Results:

• Cardiac CT is effective in detecting cardioembolic sources and assessing stroke risk.
• Cardiac CT offers a less invasive alternative to TEE, avoiding associated discomfort and risks.
• Cardiac CT can simultaneously diagnose coronary artery disease in stroke patients.

Conclusions:

• Cardiac CT is a powerful and reliable imaging modality for evaluating cardioembolic sources in ischemic stroke.
• It serves as a valuable alternative to TEE, improving patient experience and safety.
• Despite its utility, current guidelines do not recommend cardiac CT for initial intracardiac evaluations or risk assessment in stroke patients.