Cardiovascular and cerebrovascular special examinations include electrocardiogram, cardiac ultrasound, coronary angiography, cervical vascular ultrasound, cerebral CT, cerebral MRI, and so on. Specialized examinations for the heart include electrocardiogram, 24-hour ambulatory electrocardiogram, cardiac ultrasound, coronary CTA, coronary angiography, etc., which can detect various types of arrhythmia, myocardial ischemia, heart valve disease, coronary artery disease, and other heart diseases. Specialized tests for the brain include carotid vascular ultrasound (e.g. carotid ultrasound, vertebral artery ultrasound), intracranial angiography, cerebral CT, cerebral MRI (Magnetic Resonance Imaging of the brain), cerebral MRA (Magnetic Resonance Angiography of the brain), etc., which can detect intracranial abnormalities, intracranial tumors, cerebral hemorrhages, cerebral infarctions, cerebral vascular sclerosis, stenosis, and so on. In case of heart and brain diseases, it is recommended to go to regular hospitals to get a clear diagnosis and avoid delays.