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- W2002480212 abstract "Coronary plaque morphology (simple or complex) has a recognized clinical, pathophys iologic, and prognostic importance, but its routine use is hampered by the subjective and qualitative nature of the assessment. The aim of this study was to assess the feasibility and accuracy of mathematical, objective, operator-independent assessment of plaque morphology, by means of algorithms based on vector and fractal analysis, previously developed for describing continuous curves. Twenty coronary angiograms were analyzed: 10 with simple-type stenosis (defined according to Ambrose type I pattern, Group I) and 10 with complex-type stenosis (Ambrose type II pattern, Group II). Five morphometric parameters effectively separated simple and complex-type stenosis: peaks/cm (Group I = 0.24 ±0.31 vs Group II= 2.46 ± 1.83, P < .01); summed maximum error/cm (I = 0.94 ±1.19 vs II = 4.53 ±0.56, P < .01); integrated error/cm (I = 0.22 ±0.27 vs II = 2.25 ± 1.68, P < .01); number of features/cm (I = 0.02 ±0.05 vs II = 1.19 ±0.65, P < .01); standard deviation curvature (I = 0.07 ±0.01 vs II = 0.22 ±0.21, P = 0.06). The scaled edge-length ratio—the only parameter based on fractal analysis—was not different between the two groups (I = 1.03 ±0.01 vs II = 1.13 ±0.10, P = ns). Hence, a quantitative description of plaque morphology is feasible and allows an effective discrimination of simple and complex plaque profiles with morphometric para meters based on vector analysis." @default.
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- W2002480212 date "1996-11-01" @default.
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- W2002480212 title "Quantitative Assessment of Coronary Atherosclerotic Plaque Profile by Morphometric Analysis of Angiographic Images" @default.
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- W2002480212 doi "https://doi.org/10.1177/000331979604701105" @default.
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