Ultrasonography, Doppler, Transcranial

Sonography, Doppler Transcranial; Transcranial Doppler Sonography; Transcranial Doppler Ultrasonography; Transcranial Sonography, Doppler; Transcranial Ultrasonography, Doppler; Ultrasonography, Doppler Transcranial
A non-invasive technique using ultrasound for the measurement of cerebrovascular hemodynamics, particularly cerebral blood flow velocity and cerebral collateral flow. With a high-intensity, low-frequency pulse probe, the intracranial arteries may be studied transtemporally, transorbitally, or from below the foramen magnum.