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鼻咽癌DCE-MRI定量分析与乏氧诱导因子-1α表达的关系 被引量:3

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摘要 目的探讨鼻咽癌动态对比增强磁共振扫描(DCE-MRI)参数与乏氧诱导因子-1α(HIF-1α)表达的相关性,并分析两者与鼻咽癌临床病理特征之间的关系。方法对62例鼻咽癌患者行DCE-MRI扫描,获取感兴趣区域的DCE-MRI参数,并在标记处行鼻咽镜活检,用免疫组化方法检测鼻咽癌组织中HIF-1α的表达水平,另检测20例鼻咽慢性炎性组织的HIF-1α表达用于对照;观察DCE-MRI曲线特征,并对DCE-MRI参数和HIF-1α表达情况以及两者与患者临床病理特征的相关性进行分析。结果鼻咽癌DCE-MRI参数中,增强剂流入肿瘤时间(T1 on set)和最大上升斜率(MS)在不同患者性别、年龄间差异无统计学意义(P>0.05),在T分期、N分期和临床分期间差异有统计学意义(P<0.05)。鼻咽癌组织和鼻咽慢性炎性组织中HIF-1α蛋白的阳性表达率分别为79.0%和0,两组间比较差异有统计学意义(P<0.05);HIF-1α表达在不同患者年龄、N分期间差异有统计学意义(P<0.05),而在不同患者性别、T分期和临床分期间差异无统计学意义(P>0.05)。HIF-1α的阳性表达与T1 on set和曲线下面积有明显相关(回归系数分别为-1.817和0.014,P<0.05),而与MS和达峰时间无明显相关性(回归系数分别为0.005和1.009,P>0.05)。结论在鼻咽癌中,DCE-MRI相关参数与癌组织HIF-1α蛋白的阳性表达密切相关,且与鼻咽癌的临床病理特征密切相关。DCE-MRI技术的应用有助于评估鼻咽癌组织的乏氧状况,并在鼻咽癌的辅助诊断、临床分期及预后判断中有一定的临床价值。
出处 《广东医学》 CAS CSCD 北大核心 2013年第24期3757-3761,共5页 Guangdong Medical Journal
基金 广东省深圳市科技计划项目(编号:201002005)
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