目的:探究单纯疱疹病毒(HSV)感染后脑脊液(CSF)中S100B、Cys-C、MMP-9水平对自身免疫性脑炎(AE)的预测价值。方法:选取2016年1月至2021年3月河北中石油中心医院收治的200例HSV感染患者为研究对象,根据是否继发AE分为研究组(继发AE,35例...目的:探究单纯疱疹病毒(HSV)感染后脑脊液(CSF)中S100B、Cys-C、MMP-9水平对自身免疫性脑炎(AE)的预测价值。方法:选取2016年1月至2021年3月河北中石油中心医院收治的200例HSV感染患者为研究对象,根据是否继发AE分为研究组(继发AE,35例)和对照组(未继发AE,165例)。多因素Logistic回归分析HSV感染患者继发AE的独立影响因素。Spearman法分析脑脊液中Cys-C、MMP-9与S100B水平的相关性。受试者工作特征(ROC)曲线分析S100B、Cys-C、MMP-9对AE的预测价值。构建风险预测模型并进行评价。结果:多因素Logistic回归分析显示,MRI异常、脑脊液S100B、MMP-9升高、EEG异常是HSV感染患者继发AE的独立危险因素,脑脊液Cys-C是其保护因素(P<0.05)。Spearman分析显示,HSV感染患者Cys-C浓度与S100B水平呈负相关(r=-0.83,P<0.05),MMP-9浓度与S100B水平呈正相关(r=0.88,P<0.05)。构建的联合预测因子pre1诊断HSV患者继发AE的AUC明显大于S100B、Cys-C、MMP-9单独预测的AUC(0.876 vs 0.827、0.787、0.750)。构建的风险预测模型具有良好的区分度和一致性。结论:脑脊液中S100B、Cys-C、MMP-9水平均可对HSV感染患者诱发AE的可能性进行有效预测,且三项指标联合预测价值最大,其次是S100B蛋白、Cys-C、MMP-9。展开更多
目的探讨S100b联合CRP在诊断早产儿脑损伤(Brain injury in premature infants,BIPI)中的临床效能。方法选择2022年1月—2024年1月于本院儿科确诊的125例BIPI患儿作为BIPI组,另选择同期收治的85例非BIPI早产儿作为对照组。根据BIPI患儿...目的探讨S100b联合CRP在诊断早产儿脑损伤(Brain injury in premature infants,BIPI)中的临床效能。方法选择2022年1月—2024年1月于本院儿科确诊的125例BIPI患儿作为BIPI组,另选择同期收治的85例非BIPI早产儿作为对照组。根据BIPI患儿病情严重程度分为轻度BIPI组和重度BIPI组两组亚组。收集所有研究对象的临床资料并检测血清中S100b联合CRP表达水平。Logistic回归分析发生BIPI的危险因素,S100b联合CRP在诊断BIPI的临床效能采用ROC曲线分析。结果对照组、轻度BIPI组和重度BIPI组三组间S100b、CRP表达水平存在统计学差异(P<0.05)。与对照组相比,轻度和重度BIPI组S100b、CRP表达水平均明显升高(P<0.05);与轻度BIPI组相比,重度BIPI组S100b、CRP表达水平均明显升高(P<0.05)。与对照组相比,宫内窘迫、出生后窒息、有创机械通气、新生儿呼吸窘迫综合征发生率及血清中S100b、CRP表达水平在BIPI组中明显升高(P<0.05)。Logistic回归分析结果显示,有创机械通气(OR=1.432)、新生儿呼吸窘迫综合征(OR=2.543)、S100b(OR=3.782)和CRP表达(OR=3.449)是发生BIPI的危险因素。S100b及CRP在诊断BIPI的曲线下面积分别为0.895和0.812,S100b联合CRP在诊断BIPI的曲线下面积为0.931,诊断敏感度和特异度分别为97.43%和92.25%。结论BIPI患儿外周血中S100b和CRP表达水平显著升高,S100b联合CRP在诊断BIPI中具有显著的临床价值。展开更多
We propose a content-based parallel image retrieval system to achieve high responding ability. Our system is developed on cluster architectures. It has several retrieval. servers to supply the service of content-based...We propose a content-based parallel image retrieval system to achieve high responding ability. Our system is developed on cluster architectures. It has several retrieval. servers to supply the service of content-based image retrieval. It adopts the Browser/Server (B/S) mode. The users could visit our system though web pages. It uses the symmetrical color-spatial features (SCSF) to represent the content of an image. The SCSF is effective and efficient for image matching because it is independent of image distortion such as rotation and flip as well as it increases the matching accuracy. The SCSF was organized by M-tree, which could speedup the searching procedure. Our experiments show that the image matching is quickly and efficiently with the use of SCSF. And with the support of several retrieval servers, the system could respond to many users at mean time. Key words content-based image retrieval - cluster architecture - color-spatial feature - B/S mode - task parallel - WWW - Internet CLC number TP391 Foundation item: Supported by the National Natural Science Foundation of China (60173058)Biography: ZHOU Bing (1975-), male, Ph. D candidate, reseach direction: data mining, content-based image retrieval.展开更多
文摘目的:探究单纯疱疹病毒(HSV)感染后脑脊液(CSF)中S100B、Cys-C、MMP-9水平对自身免疫性脑炎(AE)的预测价值。方法:选取2016年1月至2021年3月河北中石油中心医院收治的200例HSV感染患者为研究对象,根据是否继发AE分为研究组(继发AE,35例)和对照组(未继发AE,165例)。多因素Logistic回归分析HSV感染患者继发AE的独立影响因素。Spearman法分析脑脊液中Cys-C、MMP-9与S100B水平的相关性。受试者工作特征(ROC)曲线分析S100B、Cys-C、MMP-9对AE的预测价值。构建风险预测模型并进行评价。结果:多因素Logistic回归分析显示,MRI异常、脑脊液S100B、MMP-9升高、EEG异常是HSV感染患者继发AE的独立危险因素,脑脊液Cys-C是其保护因素(P<0.05)。Spearman分析显示,HSV感染患者Cys-C浓度与S100B水平呈负相关(r=-0.83,P<0.05),MMP-9浓度与S100B水平呈正相关(r=0.88,P<0.05)。构建的联合预测因子pre1诊断HSV患者继发AE的AUC明显大于S100B、Cys-C、MMP-9单独预测的AUC(0.876 vs 0.827、0.787、0.750)。构建的风险预测模型具有良好的区分度和一致性。结论:脑脊液中S100B、Cys-C、MMP-9水平均可对HSV感染患者诱发AE的可能性进行有效预测,且三项指标联合预测价值最大,其次是S100B蛋白、Cys-C、MMP-9。
文摘目的探讨S100b联合CRP在诊断早产儿脑损伤(Brain injury in premature infants,BIPI)中的临床效能。方法选择2022年1月—2024年1月于本院儿科确诊的125例BIPI患儿作为BIPI组,另选择同期收治的85例非BIPI早产儿作为对照组。根据BIPI患儿病情严重程度分为轻度BIPI组和重度BIPI组两组亚组。收集所有研究对象的临床资料并检测血清中S100b联合CRP表达水平。Logistic回归分析发生BIPI的危险因素,S100b联合CRP在诊断BIPI的临床效能采用ROC曲线分析。结果对照组、轻度BIPI组和重度BIPI组三组间S100b、CRP表达水平存在统计学差异(P<0.05)。与对照组相比,轻度和重度BIPI组S100b、CRP表达水平均明显升高(P<0.05);与轻度BIPI组相比,重度BIPI组S100b、CRP表达水平均明显升高(P<0.05)。与对照组相比,宫内窘迫、出生后窒息、有创机械通气、新生儿呼吸窘迫综合征发生率及血清中S100b、CRP表达水平在BIPI组中明显升高(P<0.05)。Logistic回归分析结果显示,有创机械通气(OR=1.432)、新生儿呼吸窘迫综合征(OR=2.543)、S100b(OR=3.782)和CRP表达(OR=3.449)是发生BIPI的危险因素。S100b及CRP在诊断BIPI的曲线下面积分别为0.895和0.812,S100b联合CRP在诊断BIPI的曲线下面积为0.931,诊断敏感度和特异度分别为97.43%和92.25%。结论BIPI患儿外周血中S100b和CRP表达水平显著升高,S100b联合CRP在诊断BIPI中具有显著的临床价值。
文摘We propose a content-based parallel image retrieval system to achieve high responding ability. Our system is developed on cluster architectures. It has several retrieval. servers to supply the service of content-based image retrieval. It adopts the Browser/Server (B/S) mode. The users could visit our system though web pages. It uses the symmetrical color-spatial features (SCSF) to represent the content of an image. The SCSF is effective and efficient for image matching because it is independent of image distortion such as rotation and flip as well as it increases the matching accuracy. The SCSF was organized by M-tree, which could speedup the searching procedure. Our experiments show that the image matching is quickly and efficiently with the use of SCSF. And with the support of several retrieval servers, the system could respond to many users at mean time. Key words content-based image retrieval - cluster architecture - color-spatial feature - B/S mode - task parallel - WWW - Internet CLC number TP391 Foundation item: Supported by the National Natural Science Foundation of China (60173058)Biography: ZHOU Bing (1975-), male, Ph. D candidate, reseach direction: data mining, content-based image retrieval.
