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題 名 | Soft-tissue Tumor Differentiation Using 3D Power Doppler Ultrasonography with Echo-contrast Medium Injection=以三維能量超音波合併超音波顯影劑分辨軟組織腫瘤之良惡性 |
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作 者 | 邱宏仁; 周宜宏; 陳威明; 陳玉琨; 王信凱; 張政彥; | 書刊名 | Journal of the Chinese Medical Association |
卷 期 | 73:12 2010.12[民99.12] |
頁 次 | 頁628-633+CA112 |
分類號 | 416.13 |
關鍵詞 | 超音波顯影劑; 軟組織腫瘤; 三維能量超音波; 血管-血流指數; Echo-contrast medium; Soft-tissue tumor; 3D power Doppler ultrasonography; Vascular-flow index; |
語 文 | 英文(English) |
英文摘要 | Background: We aimed to evaluate the ability of 3-dimensional power Doppler ultrasonography to differentiate soft-tissue masses from blood flow and vascularization with contrast medium. Methods: Twenty-five patients (mean age, 44.1 years; range, 12–77 years) with a palpable mass were enrolled in this study. Volume data were acquired using linear and convex 3-dimensional probes and contrast medium injected manually by bolus. Data were stored and traced slice by slice for 12 slices. All patients were scanned by the same senior sonologist. The vascular index (VI), flow index (FI), and vascular-flow index (VFI) were automatically calculated after the tumor was completely traced. All tumors were later confirmed by pathology. Results: The study included 8 benign (mean, 36.5 mL; range, 2.4–124 mL) and 17 malignant (mean, 319.4 mL; range, 9.9–1,179.6 mL) tumors. Before contrast medium injection, mean VI, FI and VFI were, respectively, 3.22, 32.26 and 1.07 in benign tumors, and 1.97, 29.33 and 0.67 in malignant tumors. After contrast medium injection, they were, respectively, 20.85, 37.33 and 8.52 in benign tumors, and 40.12, 41.21 and 17.77 in malignant tumors. The mean differences between with and without contrast injection for VI, FI and VFI were, respectively, 17.63, 5.07 and 7.45 in benign tumors, and 38.15, 11.88 and 16.55 in malignant tumors. Tumor volume, VI, FI and VFI were not significantly different between benign and malignant tumors before and after echo-contrast medium injection. However, VI, FI and VFI under self-differentiation (differences between with and without contrast injection) were significantly different between malignant and benign tumors. Conclusion: Three-dimensional power Doppler ultrasound is a valuable tool for differential diagnosis of soft-tissue tumors, especially with the injection of an echo-contrast medium. |
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