Transcranial Doppler (TCD) is a noninvasive vascular disease examination method, which uses the ultrasonic Doppler effect to detect the hemodynamic and blood physiological parameters of the main arteries on the intracranial basilar artery ring. In recent years, it has developed rapidly at home and abroad, and has become one of the important methods for the diagnosis of cerebrovascular diseases.
TCD Transcranial Doppler (TCD) is an effective cerebrovascular examination technique, which belongs to the category of ultrasound examination and can effectively detect various cerebrovascular diseases. Middle-aged and elderly people can have this examination to get a more comprehensive understanding of their health.
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Transcranial Doppler ultrasound (TCD) is a noninvasive method to detect the blood flow Doppler signal of basilar artery and a series of physiological parameters from physiological holes of the head, such as occipital window, temporal window, eye window or thin skull.
Detectable arteries include: middle cerebral artery, anterior cerebral artery, posterior cerebral artery, anterior communicating artery, posterior communicating artery, terminal segment of internal carotid artery, siphon segment of internal carotid artery, extracranial segment of internal carotid artery, intracranial segment of vertebral artery and basilar artery.
Extended data
Transcranial Doppler ultrasound is to judge whether there are cerebrovascular diseases, such as cerebrovascular stenosis, cerebral hemangioma, cerebral infarction, cerebral blood supply deficiency, etc., by detecting the blood flow of the main arteries at the skull base. However, if the examiners are elderly people (especially women), there are cases such as skull thickening, tortuous arteries and arterial displacement, which will affect the accuracy of the examination results.