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- W2143865693 abstract "In this paper we examine four algorithms for automated ultrasonic boundary detection, and describe the application of these algorithms to the quantification of the intima-media thickness (IMT) in the human carotid artery. The first algorithm uses a dynamic programming approach to identify the boundary that minimizes a certain cost function. The second algorithm is based on finding points of maximum gradient. The third algorithm employs a mathematical model describing the intensity profile perpendicular to the two boundaries defining the IMT. The last algorithm is based on defining a template representing the intensity profile across boundary and applying a matched filter procedure to find the image region that best matches it. The authors also present a quantitative and qualitative comparison between the four algorithms examined. It is shown that the dynamic programming algorithm provides superior performance in terms of accuracy and robustness. The correlation coefficients between automated measurements and manually obtained reference values were 0.96, 0.94, 0.63, and 0.85 for the dynamic programming, the maximum gradient the model-based, and the matched filter algorithm, respectively (n=30)." @default.
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- W2143865693 date "2002-11-23" @default.
- W2143865693 modified "2023-09-22" @default.
- W2143865693 title "Implementation and comparison of four different boundary detection algorithms for quantitative ultrasonic measurements of the human carotid artery" @default.
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- W2143865693 doi "https://doi.org/10.1109/cic.1997.647832" @default.
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