The Value of Contrast-Enhanced Transesophageal Echocardiography in the Detection of Cardiac Right-to-Left Shunt Related with Cryptogenic Stroke and Migraine

<div>Semiquantitative grading of a patent foramen ovale-right-to-left shunt by c-TEE. (a) A small amount of RLS (1-10 microbubbles in the left atrium). (b) A moderate amount of RLS (11-30 microbubbles in the left atrium). (c) A large amount of RLS (more than 30 microbubbles in the left atrium or left atrial opacity).</div>

BioMed Research International

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Figure 2: The Value of Contrast-Enhanced Transesophageal Echocardiography in the Detection of Cardiac Right-to-Left Shunt Related with Cryptogenic Stroke and Migraine 

Figure 2 | The Value of Contrast-Enhanced Transesophageal Echocardiography in the Detection of Cardiac Right-to-Left Shunt Related with Cryptogenic Stroke and Migraine 