Sentence examples for by permeability surface area from inspiring English sources
Circulating glucose and insulin levels, muscle capillary recruitment as reflected by permeability surface area for glucose (PSglu) and forearm glucose uptake were measured.
Yeh et al. [ 38] evaluated the extraction flow product (EFP), which is a similar analogue but respects the possibility that contrast leakage from the vessels is limited by flow instead of being limited by the permeability surface area product.
In low-permeability situations where the flow of contrast across the vessel wall is limited by the vessel wall itself (i.e., high-molecular-weight contrast agents and mature vessels), Ktrans is determined primarily by the permeability surface area product, PS, where P represents vessel wall permeability and S represents vessel surface area per unit tumor volume.
CK-160 tumors have mature blood vessels embedded in bands of connective tissue [ 25], and because the uptake of gadomelitol was slow compared with that of Gd-DTPA, it is likely that the Ktrans of gadomelitol was determined mainly by the permeability surface area product rather than the blood perfusion.
Within the accessed dynamic flow range (0.2 to 1.9 mL/min/mL), the data are adequately described by the Renkin-Crone model yielding a permeability surface area product of (1.53±0.46) mL/min/mL.
If delivery to ve is not limited by perfusion (ie delivery to the endothelium) but by the leakiness of the endothelium, then Ktrans is the capillary endothelial permeability surface area product, describing vascular permeability.
Permeability Surface area product.
In order to study the permeability surface area product (PS), [51Cr]-EDTA was injected as a bolus dose (370 bq) followed by continuous infusion 0.33 ml/h (3.7 MBq/ml).
Conversely, for low permeability conditions where tracer flux is permeability limited, the Ktrans value is equal to the permeability surface area product per unit volume of tissue [ 19].
Permeability surface area for glucose (PSglu) was calculated as described previously [ 7].
