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肝癌诊断中肝脏增强CT技术与肝脏MRI技术的应用准确率评价
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作者 黄妃玲 《中文科技期刊数据库(引文版)医药卫生》 2024年第7期0115-0118,共4页
研究肝脏MRI及肝脏增强CT诊断肝癌疾病的意义。方法 2023.01~2023.12作为研究样本收录的时间范围,对比研究30例就诊的疑似肝癌患者,病理检查结果为“金标准”,开展肝脏MRI、肝脏增强CT扫描检查,分析检查结果。结果 病理检查方面,确诊肝... 研究肝脏MRI及肝脏增强CT诊断肝癌疾病的意义。方法 2023.01~2023.12作为研究样本收录的时间范围,对比研究30例就诊的疑似肝癌患者,病理检查结果为“金标准”,开展肝脏MRI、肝脏增强CT扫描检查,分析检查结果。结果 病理检查方面,确诊肝癌患者29例,占比96.67%,肝脏MRI诊断方面,确诊肝癌患者28例,占比93.33%;肝脏增强CT诊断方法实施后,检出肝癌患者22例(73.33%),=4.320,P=0.038,(P<0.05)。 肝脏MRI诊断:特异性100.00%、敏感度96.55%、准确性96.67%;肝脏增强CT诊断:特异性0.00%、敏感度72.41%、准确性70.00%;研究数据对比差异明显。结论 面对于肝癌疾病的诊断,肝脏MRI技术的应用,使得肝癌疾病诊断准确性较高,可积极帮助广大临床医师制定适宜的疾病诊疗计划,避免患者错过最佳治疗时机,因此,值得借鉴及临床推广应用。 展开更多
关键词 肝癌诊断 肝脏增强CT技术 肝脏MRI技术 应用准确率
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Application of a support vector machine for prediction of slope stability 被引量:14
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作者 XUE Xin Hua YANG Xing Guo CHEN Xin 《Science China(Technological Sciences)》 SCIE EI CAS 2014年第12期2379-2386,共8页
Slope stability estimation is an engineering problem that involves several parameters. To address these problems, a hybrid model based on the combination of support vector machine(SVM) and particle swarm optimization(... Slope stability estimation is an engineering problem that involves several parameters. To address these problems, a hybrid model based on the combination of support vector machine(SVM) and particle swarm optimization(PSO) is proposed in this study to improve the forecasting performance. PSO was employed in selecting the appropriate SVM parameters to enhance the forecasting accuracy. Several important parameters, including the magnitude of unit weight, cohesion, angle of internal friction, slope angle, height, pore water pressure coefficient, were used as the input parameters, while the status of slope was the output parameter. The results show that the PSO-SVM is a powerful computational tool that can be used to predict the slope stability. 展开更多
关键词 slope stability support vector machine particle swarm optimization PREDICTION
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