肝脏泡球蚴病CT灌注成像与微血管密度及血管内皮生长因子的相关性分析  被引量:26

The correlation of CT perfusion imaging with microvessel density and vascular endothelial growth factor in hepatic alveolar echinococcosis

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作  者:王静[1] 任波[1] 刘文亚[1] 温浩[3] 卿松[2] 谢卫东[1] 孙亚菁[1] 王海涛[1] 

机构地区:[1]新疆医科大学第一附属医院影像中心,乌鲁木齐830054 [2]新疆医科大学第一附属医院病理科,乌鲁木齐830054 [3]新疆医科大学第一附属医院新疆包虫病研究所,乌鲁木齐830054

出  处:《中华放射学杂志》2011年第11期1036-1039,共4页Chinese Journal of Radiology

基  金:国家自然科学基金资助项目(30960100)

摘  要:目的分析肝脏泡球蚴病CT灌注成像与微血管密度(MVD)和血管内皮生长因子(VEGF)的相关性,评价CT灌注技术在显示肝泡球蚴血管生成方面的价值。方法回顾性分析27例肝脏泡球蚴病患者的螺旋CT灌注检查资料,绘制病灶边缘ROI的时间密度曲线(TDC),并测定灌注参数包括血流量(BF)、血容量(BV)、平均通过时间(MTT)和表面通透性(PS)。通过病理免疫组织化学方法测定病灶边缘区域MVD计数和VEGF的表达,对不同类型TDC的灌注参数、MVD和VEGF比较采用t检验,采用Spearman法分析不同类型TDC各CT灌注参数与MVD和VEGF表达的相关性。结果21例为Ⅰ型TDC,6例为Ⅱ型TDC,两型TDC的BF分别为(111.7±27.6)和(158.9±39.5)ml·100g^-1·min^-1,BV分别为(15.1±6.2)和(26.8±8.4)ml/100g,MTT分别为(7.0±4.4)和(7.7±3.1)s,PS分别为(51.7±17.3)和(51.0±20.5)ml·100g^-1·min^-1,两型TDC之间BF、BV差异有统计学意义(t值分别为-7.897和-18.783,P值均〈0.05),MTT及PS差异无统计学意义(t值分别为1.311和0.182,P值均〉0.05);两型之间MVD计数分别为(20.5±5.4)和(37.2±7.5)个/高倍视野,差异有统计学意义(t-05.223,P〈0.05),而VEGF计分分别为(2.1±1.0)和(3.2±1.0)分,差异无统计学意义(t=-1.707,P〉0.05)。MVD与Ⅱ型TDC的BF、BV有相关性(r值分别为0.789和0.878,P值均〈0.05),与MTr、PS间无相关性(P值均〉0.05);MVD与I型TDC各参数之间,以及VEGF与两型TDC各灌注参数之间均无相关性(P值均〉0.05)。结论CT灌注成像不同TDC在一定程度上反映了病灶边缘不同的血管生成状态,有望为泡球蚴病灶边缘的血管化研究提供一种新的方法。Objective To explore the correlation of CT perfusion imaging with microvessel density (MVD) and vascular endothelial growth factor (VEGF) in hepatic alveolar echinococcosis (HAE). Methods Muhi-slice spiral CT perfusion imaging was performed in 27 patients with HAE. Time-density curves(TDC) of the HAE peripheral area was drawn from the region of interest (ROI) with perfusion functional software. CT perfusion parameters including blood flow ( BF ), blood volume ( BV ) , mean transit time(MTT) and permeability surface area product(PS) were calculated. MVD and VEGF expression of pathological specimens were examined by immunohistoehemical staining with anti-CD34, anti-VEGF monoclonal antibody. The CT perfusion parameters, MVD and VEGF were compared in different types of TDC with t test. The correlation of CT perfusion parameters with MVD and VEGF were analyzed with Spearman test. Results In this group, 21 cases which TDC lower than that of the liver were classified as type Ⅰ ,the others 6 cases TDC higher than the liver were of type Ⅱ TDC. TDC perfusion parameters of the two types were as follows,BF: ( 111.7 ±27.6), ( 158.9 ±39. 5)ml·100g^-1·min^-1 ,BV: ( 15.1 ±6. 2), (26.8±8.4) ml/100g,MTT: (7.0±4.4),(7.7±3.1) s,PS: (51.7 ±17.3),(51.0±20.5) ml·100g^-1·min^-1 . The significant differences of BF, BV and MVD[ (20. 5 ±5.4)/HP, (37.2 ±7.5)/HP, respectively] were found between two types (t = - 7. 897, - 18.783, - 5. 223, P 〈 0. 05, respectively). There were no significant differences in MTT, PS and VEGF expression(2. 1 ± 1.0,3.2 ± 1.0 ,respectively) between two types of TDC ( P 〉 0. 05). The correlation was found between the MVD and BF and BV in the type Ⅱ TDC group( r = 0. 789 and 0. 878, respectively) and no correlation was found between MVD and each CT perfusion parameters in the type Ⅰ TDC group ( P 〉 0. 05 ). There was no correlation between the VEGF expression and CT perfusion paramete

关 键 词:棘球蚴病  体层摄影术 X线计算机 对比研究 

分 类 号:R532.32[医药卫生—内科学] R816.5[医药卫生—临床医学]

 

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