Introduction. Transcranial Doppler is the only non-invasive neuroimaging
modality in the diagnosis and monitoring of various neurovascular diseases.
Apart from assessing cerebral hemodynamics of blood flow in the basal brain
arteries, transcranial Doppler provides physiological data and anatomical
images. Quantification analysis of vasomotor reactivity. Various
transcranial Doppler methods evaluate cerebral vasomotor reactivity,
providing important information on the properties of arterioles under
induced hemodynamic conditions. Exogenous and endogenous vasoactive stimuli
of different potency (apnea, acetazolamide, carbon dioxide, L-arginine) are
most commonly used, making transcranial Doppler a prognostic indicator of
future ischemic events. This article reviews principles of various
transcranial Doppler methods in the evaluation of vasomotor reactivity,
emphasizing their advantages and disadvantages. Transcranial Doppler in the
field of reduced vasomotor reactivity. Evaluation of vasomotor reactivity
has a role in the prediction of future ischemic events, evaluation of
revascularization effect after carotid endarterectomy, but also in the
increasingly significant choice of the right time to perform it. In recent
years, transcranial Doppler methods have found application in other areas of
dysfunctional cerebral hemodynamics: dementia, hypertension, migraines, and
sepsis. Conclusion. Due to an excellent temporal resolution, non-invasive
approach, good cost-benefit ratio, bedside monitoring, relative simplicity
in terms of interpretation and performance, and portability, transcranial
Doppler in vasomotor reactivity may be the ideal tool in the evaluation of
cerebral hemodynamics, arterial perfusion integrity and collateral capacity.
The use of transcranial Doppler sonography in a pediatric neurological clinic