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• W2084398469 abstract "To determine the diagnostic value of contrast-enhanced ultrasonography, to differentiate benign and malignant soft-tissue tumors and to assess the feasibility and interest of modelling enhancement curves. This retrospective study includes 118 patients with soft-tissue tumors, examined with ultrasound after injection of SonoVue®, a contrast product. The raw data were treated with CHI-Q acquisition software to model the enhancement curves. We analyzed tumor uptake of the contrast product visually and studied the enhancement curves, characterized by five parameters: peak intensity, time to peak, mean transit time, initial slope, and area under the curve. There were 81 benign and 37 malignant tumors. For a diagnosis of benign tumor, the absence of contrast uptake had a sensitivity of 60%, a specificity of 68%, a positive predictive value of 50% and a negative predictive of 83%. Study of the 70 curves obtained (48 benign and 22 malignant tumors) showed that the parameters of area under the curve (Chi2 = 8.6 and P < 0.005), slope (Chi2 = 8.12 and P = 0.004), and peak intensity (Chi2 = 7.55, P = 0.005) differed significantly between the two populations. Absence of contrast uptake suggests a benign lesion. The study of enhancement curves showed significant differences between the different tumor populations." @default.
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• W2084398469 date "2012-01-01" @default.
• W2084398469 modified "2023-10-18" @default.
• W2084398469 title "Contrast-enhanced ultrasonography of peripheral soft-tissue tumors: Feasibility study and preliminary results" @default.
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• W2084398469 doi "https://doi.org/10.1016/j.diii.2011.11.007" @default.
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