LOW-ORDER NON-SPATIAL EFFECTS DOMINATE SECOND-ORDER SPATIAL EFFECTS IN THE TEXTURE QUANTIFIER ANALYSIS OF 18F-FDG-PET IMAGES.

Low-order non-spatial effects dominate second-order spatial effects in the texture quantifier analysis of 18F-FDG-PET images.

BackgroundThere is increasing interest in applying image texture quantifiers to assess the intra-tumor heterogeneity observed in FDG-PET images of various cancers.Use of these quantifiers as prognostic indicators of disease outcome and/or treatment response has yielded inconsistent results.We study the general applicability of some well-established

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Simulation Method for the Distribution of Fractured Branches in Tight Reservoirs During CO2 Fracturing Based on a Fractal Method

The accurate description of fracture distributions is a crucial prerequisite for fracturing design and the evaluation of fracturing effects in tight reservoirs.We employed a fractal L-system to establish a tree branch model and derived a planar simulation method to characterize the distribution of natural weak discontinuities in rock.Weak discontin

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