Work

Transcranial Doppler Ultrasound: A Review of the Physical Principles and Major Applications in Critical Care

Year: 2013

Type: review

Abstract: Transcranial Doppler (TCD) is a noninvasive ultrasound (US) study used to measure cerebral blood flow velocity (CBF-V) in the major intracranial arteries. It involves use of low-frequency (≤2 MHz) US waves to insonate the basal cerebral arteries through relatively thin bone windows. TCD allows dynamic monitoring of CBF-V and vessel pulsatility, with a high temporal resolution. It is relatively inexpensive, repeatable, and portable. However, the performance of TCD is highly operator dependent and can be difficult, with approximately 10-20% of patients having inadequate transtemporal acoustic windows. Current applications of TCD include vasospasm in sickle cell disease, subarachnoid haemorrhage (SAH), and intra- and extracranial arterial stenosis and occlusion. TCD is also used in brain stem death, head injury, raised intracranial pressure (ICP), intraoperative monitoring, cerebral microembolism, and autoregulatory testing.

Source: International Journal of Vascular Medicine

DOI: 10.1155/2013/629378

Authors: Jawad Naqvi, Kok Hooi Yap, Gulraiz Ahmad, Jonathan Ghosh

Institutions: Wythenshawe Hospital, Manchester Royal Infirmary, Royal Oldham Hospital

Language: English

Topic: Traumatic Brain Injury and Neurovascular Disturbances

Subfield: Clinical Neurology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,000