Figure 1From: Relationship between oxygen supply and cerebral blood flow assessed by transcranial Doppler and near – infrared spectroscopy in healthy subjects during breath – holdingCBFV modifications during BH of a healthy subject. Time course of the CBFV during BH: the figure reports the entire Doppler spectra envelopes in function of time. The increase of CBFV is almost linear in function of the BH duration. After breath release, CBFV returns to baseline conditions quickly.Back to article page