多层螺旋CT灌注成像评价周围型肺癌的血管生成及周期蛋白D1基因表达  被引量:6

Multi-slice spiral CT perfusion imaging for the evaluation of angiogenesis and cell cycle protein D1 expression in peripheral lung cancer

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作  者:马树华[1] 徐克[2] 肖壮伟[1] 孙政育[3] 王强[2] 杨明伟[2] 卢涛[2] 黎庶[2] 乐洪波[1] 韩铭钧[2] 李玉光[1] 

机构地区:[1]汕头大学医学院第一附属医院放射科广东省医学分子影像重点实验室,515041 [2]中国医科大学第一附属医院放射科 [3]哈尔滨市第一医院放射科

出  处:《中华放射学杂志》2008年第7期734-739,共6页Chinese Journal of Radiology

摘  要:目的探讨多层螺旋CT灌注成像与周围型肺癌血管生成及细胞周期蛋白D1(cyclinDl)表达的相关性。方法73例周围型肺癌行16层螺旋CT灌注成像,分析周围型肺癌的时间密度曲线(TDC)、灌注参数图像和各灌注参数[血流量(BF)、血容量(BV)、平均通过时间(MTT)、表面通透性(PS)、强化峰值(PH)、肿块-动脉强化峰值比(PHpm/PHa)]。利用免疫组织化学测定微血管密度(MVD)并标定cyclinD1,评价周围型肺癌各CT灌注参数与MVD计数及cyclinD1表达的相关性。统计学方法采用单因素方差分析及Pearson相关分析方法。结果3组周围型肺癌(腺癌、鳞癌、其他类型癌)的TDC曲线相似,都有明显的上升支,CT值明显增加[TDC曲线的峰值分别为(44.87±6.83)、(34.91±8.05)、(40、66±5.87)HU],达峰值后变化较小,较平坦,有一个平台期;cyclinD1阳性表达44例,周围型肺癌cyclinD1阳性表达患者的MVD值明显高于阴性表达者[分别为(33.88±14.81)、(23.17±11.66)条/高倍视野,P〈0.01];周围型肺癌cyclinD1阳性表达者的PH、PHpm/PHa、BF、BV、PS值[分别为(60.56±6.27)HU、(20.71±2.54)、(245.54±69.73)ml·100mg^-1·min^-1、(12.17±3.50)ml/100mg、(20、11±7.34)ml·100mg^-1·min^-1]明显高于阴性表达者[(56.39±6.87)HU、(19.02±3.27)、(194.23±80.89)ml·100mg^-1·min^-1、(9.67±3.00)ml/100mg、(14.10±7.45)ml·100mg^-1·min^-1],差异有统计学意义(P值均〈0.05);3组周围型肺癌中,cyclinD1阳性表达的PH、PHpm/PHa、BF、BV、PS值与MVD均呈正相关,其中,BV、PS、BF值的r值分别为0.409、0.517、0.503,呈显著性相关(P值均〈0.01);PH、PHpm/PHa的r值分别为0.319、0.324,呈低度相关(P值均〈0.05)。cyclinD1阴性表达者PH、PHpm/PHa、BF、BV、PS值与MVD均无相�Objective To investigate the relationship between multi-slice spiral CT perfusion imaging and tumor angiogenesis and cell cycle protein D1 ( cyclinD1 ) expression in patients with peripheral lung cancer. Methods Seventy-three patients with peripheral lung cancer underwent 16-slice spiral CT perfusion imaging. The CT perfusion imaging were analyzed for time density curve (TDC), perfusion parametric maps and the respective perfusion parameters (BF, BV, PS, PH, and PHpm/PHa). Correlation between the respective perfusion parameters and immunohistochemical findings of MVD measurement and cyclinD1 expression were evaluated. Statistical method used one factor analysis of variance (One-way ANOVA) and Pearson correlation analysis. Results The shape of TDC of three groups of peripheral lung cancers ( adenocareinoma, squamous cell carcinoma, and other type of cancer) was similar. They showed a steeper slope, was obvious increase of nodular HU value [ peak height of TDC is respectively ( 44. 87 ± 6. 83), (34. 91 ± 8.05 ), (40. 66 ± 5. 87 ) HU ], changed little after reaching peak height, became flat at peak, had a platform. Forty-four patients were eyelinD1 positive expression, the peripheral lung cancers with eyelinD1 positive expression showed significantly higher MVD value than that of the peripheral lung cancers with eyelinD1 negative expression [ respectively ( 33.88 ± 14.81 ) , ( 23.17 ± 11.66 ) band/high magnification, P 〈 0.01 ]. The cancers with eyelinD1 positive expression showed significantly higher PH, PHpm/PHa, BF,BV, PS value than those of the cancers with eyelinD1 negative expression [ respectively (60.56±6.27)HU,(20.71±2.54),(245.54±69.73)ml·100mg^-1·min^-1,(12.17 ±3.50)ml/ 100 mg, (20. 11 ± 7.34 ) ml·100mg^-1·min^-1 vs. ( 56. 39 ± 6. 87 ) HU, ( 19.02 ± 3. 27 ), ( 194. 23 ± 80.89)ml·100mg^-1·min^-1 ,(9.67 ± 3.00) ml/100 mg,(14. 10 ±7.45) ml·100mg^-1·min^-1, all P 〈0.05]. MVD was positively correlated wit

关 键 词:肺肿瘤 体层摄影术 X线计算机 灌流 基因 BCL-1 

分 类 号:R686[医药卫生—骨科学]

 

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