Muscle S[O.sub.2] and tHb were calculated as the ratio of oxy- and total-hemoglobin and the sum of oxy- and deoxyhemoglobin
B-adrenerically activated Na/H exchanger; deoxyHb, deoxyhemoglobin
Authors (year) Pathology--Time, area and side of the brain lesion Kober; Wood Does not show (2014) Yang et al., Stroke--01 year of (2014) hemorrhagic trunk lesion (right and midbrain bridge) Kober et al., Does not show (2015b) Kober et al., Stroke: trunk lesions (71 (2015a) days); Right oblong marrow (114 days); right middle cerebral artery (254 days and 71 days) Legend: ME: Motor Execution; MI: Motor Imagery; NIRS: Near/Infrared Spectroscopy Study; Oxy/Hb: Oxyhemoglobin; Desoxy/Hb: Deoxyhemoglobin
; MMSE: Mini/Mental State Examination; P: study population; M: Men: W: Women; mL/s: Milliliter per second.
Li, "Role of deoxyhemoglobin
in lipid oxidation of washed cod muscle mediated by trout, poultry and beef hemoglobins," Meat Science, vol.
The concentration changes of oxyhemoglobin, [DELTA][Hb[O.sub.2]], and the concentration changes of deoxyhemoglobin
, [DELTA][HHb], were filtered using the RLS algorithm, and the results are presented in Figure 3.
It measures the amount of oxygen dissolved in the blood using two waves of absorption coefficient, namely, 660 nm (red light spectrum) and 940 nm (IR light spectrum), based on the detection of hemoglobin and deoxyhemoglobin
. Pulse oximeter sensors are required to analyze the treatment, surgery, and recovery of critically ill patients and for assessment of the oxygen uptake and effects of supplemental oxygen on emergency patients.
The system uses proprietary technology to capture color-coded images containing data that provides the clinician critical information such as oxyhemoglobin levels (Oxy), deoxyhemoglobin
levels (Deoxy) and oxygen saturation (O2Sat) in superficial tissue.
It was revealed that SWI-DWI mismatch had a similar capability to identify penumbra and predict stroke evolution as PWI-DWI mismatch, which is consistent with a case report that suggested SWI was potential to evaluate the ischemic penumbra and could provide perfusion information comparable with PWI. After cerebral vessel occlusion, different concentrations of paramagnetic deoxyhemoglobin
between ischemic and normal brain area can be detected on SWI as asymmetric prominent hypointense vessels.
 Reichenbach JR, Venkatesan R, Schillinger DJ, Kido DK, Haacke EM, "Small vessels in the human brain: MR venography with deoxyhemoglobin
as an intrinsic contrast agent," Radiology, 204:272-277, 1997.
Neuronal activation results in a local increase in blood supply to the active area of the brain, which induces a change in the relative concentration of oxyhemoglobin and deoxyhemoglobin
. (45) fMRI uses magnetic field to measure these relative changes in concentration of oxy- and deoxyhemoglobin
, by using a technique known as blood oxygen level dependent signal (BOLD).
This means that oxyhemoglobin absorbs more light in the infrared range than deoxyhemoglobin
, and deoxyhemoglobin
absorbs more in the red light range.
In the acute setting and due to the paramagnetic effect of deoxyhemoglobin
, hemorrhage demonstrates isointense or hypointense T1 signal and hypointense T2 signal.