The advantages of OCTA are that it is rapid, noninvasive, and inherently a three-dimensional method to visualize the chorioretinal vasculature; the advantages of AO-ICG and other AOSLO-based angiography techniques17,20,21,52,53,54,55 lie in their ability to directly visualize perfusion (including leakage in the case of AO-ICG, which cannot be detected using OCTA).
Hepatic perfusion plays a crucial role in liver transplantation strategies, for example, when preserving procured organs with the use of machine perfusion preservation (MP) and in the case of living donor liver transplantation (LDLT).
Parametric images allow the visualization of dedicated parameters of the radiopharmaceutical's kinetics, such as perfusion, transport or phosphorylation in the case of FDG.
After perfusion, worms were counted and, in the case of 7 wk adults, separated on the basis of gender.
In the case of perfusion imaging using arterial spin labelling (ASL), a low signal-to-noise technique, there is a tradeoff between the contrast-to-noise required to detect a perfusion abnormality and its spatial localisation.
Particularly in the case of perfusion MR, this could allow converting the results of the deconvolution operation from seconds−1 to ml/g/min of perfusion.
Finally, it is technically difficult to estimate accurate perfusion rates for normal tissues, especially in the case of normal tissues that have very fast ICG kinetics.
In the case of perfusion limitation, bubbles should shrink after a breathing gas shift from air to heliox because of the lower solubility of helium in blood than that of N2 (Hills 1981; James 1981).
In the case of perfusion with aCSF, evoked responses are below FSCV detection limits next to the probe, which explains why no response was detected at the probe outlet.
In the case of perfusion-limited gas exchange, our previous observations can be explained by the lower solubility of helium in blood and tissues when compared with that of N2 (Langø et al. 1996; Weathersby and Homer 1980).
