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- W2100451405 abstract "Arterial diameter is an important parameter of vascular physiology in vivo. Noninvasive measurements of arterial diameter can be used in the assessment of endothelium-dependent vasoreactivity (EDV) and arterial compliance. Measurements of EDV may serve for assessment of early atherosclerosis. The potential value of EDV measurements with specificity for individual subjects is a strong motivation for improvements in the ultrasonic measurement of arterial diameter. This article presents and evaluates new methods for the measurement and tracking of arterial diameter from B-mode images. B-mode images acquired in planes longitudinal to the vessel and in planes rotated slightly off of the vessel axis (“skew”) are considered. The cross-sections of arteries in these planes are modeled as parabola pairs or as ellipses. For the brachial artery, the variance of caliper-based diameter estimates (0.0139 mm2) is twice as large as that of elliptical-model-based diameter estimates (0.0072 mm2) and five times as large as parabolic-model-based diameter estimates (0.0027 mm2). Diameter estimates from the skew and longitudinal planes perform equivalently in limited-motion quantitative comparisons. However, diameter estimates from skew planes are less sensitive to translational motions of the artery. Also, translational motions are unambiguously represented in the skew image, thus facilitating compensatory motions of the transducer. The methods described here are relatively simple to implement and may provide adequate resolution for noninvasive assessment of EDV with individual specificity." @default.
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- W2100451405 date "1996-01-01" @default.
- W2100451405 modified "2023-10-11" @default.
- W2100451405 title "New methods for arterial diameter measurement from B-mode images" @default.
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- W2100451405 doi "https://doi.org/10.1016/0301-5629(95)02017-9" @default.
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