边缘清晰的病灶周围肝组织的各项灌注参数均与远处肝组织无显著性差异（P>0.05）。

The perfusion parameters of the liver tissue around the lesion with a clear edge showed no significant difference from those of the distant liver tissue(P>0.05).

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目的探讨造影剂强化磁共振肺灌注成像(CE MRPP)对周围型肺栓塞的诊断价值，提高对肺栓塞于ce MRPP表现的认识。

Objective To investigate the value of CE MRPP in diagnosing peripheral pulmonary embolism (PPE) and improve the acknowledgement of the PPE manifestation on CE MRPP.

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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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