Impaired cerebrovascular reactivity (CVR), a predictive factor of imminent stroke, has been
shown to be associated with carotid steno‐occlusive disease. Magnetic resonance imaging …

Regional cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) in young and
elderly participants were assessed using pulsed arterial spin labeling (ASL) and blood …

The purpose of this study was to evaluate how cerebral blood flow and bolus arrival time
(BAT) measures derived from arterial spin labeling (ASL) MRI data change for different …

The brain vascular system has an autoregulatory mechanism that maintains blood perfusion
within normal limits at the capillary level. Partially due to its clinical importance, it is of …

Measurement of perfusion in longitudinal studies allows for the assessment of tissue
integrity and the detection of subtle pathologies. In this work, the feasibility of measuring …

Purpose: To investigate blood flow and transit time measurement, using the pseudo‐random
arterial modulation (PRAM). Materials and Methods: PRAM is based on a pseudo‐random …

Collateral blood flow is the compensatory flow of blood to the tissue through secondary
channels when the primary channel is compromised. It is of vital importance in …

O processo de envelhecimento é acompanhado por um declínio nas funções cognitivas,
principalmente, de funções fluidas ou de processamento. Essas diminuições são pelo …