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Contrast transcranial Doppler (c-TCD) has a high sensitivity for detecting right-to-left shunt (RLS), and is probably higher than transthoracic echocardiography (TTE) and comparable with transesophageal echocardiography (TEE).To evaluate the accuracy of echocardiography (TTE and TEE) to detect RLS compared to c-TCD.Observational study of patients <55 years old with cerebral ischaemia of undetermined...
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