目的研究兔VX2肝移植瘤的微血管密度(MVD)和血管内皮生长因子(VEGF)与CT灌注成像各灌注参数的相关关系。

Objective to study the relationship of ct perfusion parameters with microvessel density (MVD) and vascular endothelial growth factor (VEGF) in rabbit VX2 liver tumor.

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将PET成像的方法应用于微血管的研究或用微血管的理论来辅助PET图像的分析都是有意义的。

So it should be meaningful to apply PET image to the research of microvascular, and to use the microvascular theory to improve on the analysis of PET image.

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结论：MSCT灌注成像有助于周围型肺癌的诊断及与良性肿瘤的鉴别诊断，其病理基础与肿瘤微血管密度有关。

Conclusion: it is helpful to diagnose the peripheral lung cancer with MSCT perfusion imaging and to differentiate it from pulmonary benign masses, its basis was MVD pathologically.

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结论：MSCT灌注成像有助于周围型肺癌的诊断及与良性肿瘤的鉴别诊断，其病理基础与肿瘤微血管密度有关。

Conclusion: it is helpful to diagnose the peripheral lung cancer with MSCT perfusion imaging and to differentiate it from pulmonary benign masses, its basis was MVD pathologically.

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