Quantitative measurements of brain perfusion are influenced by perfusion-modifiers.
Standardization of measurement conditions and correction for important modifiers is …

There has long been an appreciation that cerebral blood flow is modulated to ensure
adequate cerebral oxygen delivery in the face of systemic hypoxaemia. There is increasing …

The intensity and spatial distribution of functional activation in the left precentral and
postcentral gyri during actual motor performance (MP) and mental representation [motor …

The ability to measure the effects of local alterations in blood flow, blood volume and
oxygenation by nuclear magnetic resonance has stimulated a surge of activity in functional …

Breathing 100% O2 at 1 atmosphere absolute (ATA) is known to be associated with a
decrease in cerebral blood flow (CBF). It is also accompanied by a fall in arterial Pco2 …

A quantitative estimate of cerebral blood oxygen saturation is of critical importance in the
investigation of cerebrovascular disease because of the fact that it could potentially provide …

Previous fMRI studies of the cerebrovascular response to hypercapnia have shown signal
change in cerebral gray matter, but not in white matter. Therefore, the objective of the …

Graded levels of supplemental inspired oxygen were investigated for their viability as a
noninvasive method of obtaining intravascular magnetic resonance image contrast …

The estimation of changes in CMRO2 using functional MRI involves an essential calibration
step using a vasoactive agent to induce an isometabolic change in CBF. This calibration …

Controlled slow breathing (at 6/min, a rate frequently adopted during yoga practice) can
benefit cardiovascular function, including responses to hypoxia. We tested the neural …