Type:
Educational Exhibit
Keywords:
Haemodynamics / Flow dynamics, Outcomes analysis, Ultrasound-Colour Doppler, CNS
Authors:
A. A. M. B. Okba, C. N. H. Bekhet; Cairo/EG
DOI:
10.26044/ecr2019/C-0944
Background
A low-frequency transducer is used to insonate the main cerebral arteries through certain windows and to evaluate changes in cerebral blood flow velocity in different cerebrovascular diseases and brain trauma.
It is cheap,
repeatable,
and permit periodic monitoring of CBFV,
which is handy in the intensive care setting.
It is helpful to diagnose and analyze vasospasm (VSP) following subarachnoid hemorrhage (SAH) and cerebral hemodynamic changes after stroke including cryptogenic stroke.
Moreover,
TCD is a valuable diagnostic tool in the management of patients with sickle-cell disease,
brain stem death and raised intracranial pressure (ICP).
Other applications of TCD include assessment of cerebral circulation during cardiopulmonary bypass,
carotid endarterectomies and carotid artery stenting.