What tests are used to confirm the diagnosis of stroke?
Confirmation of stroke diagnosis may require follow-up head imaging because of poor sensitivity of noncontrast CT for small or hyperacute infarcts. Additionally, tests such as electrocardiogram (ECG), computed tomography angiogram (CTA), magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), transcranial Doppler (TCD), transesophageal echocardiography (TEE), transthoracic echocardiography (TTE), and ultrasound (US) may be used to evaluate for potential sources of cardioembolism, thromboembolism from large artery atherosclerosis, dissection, or other disease processes such as hypercoagulability.