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某三级甲等公立医院数字减影设备的成本效益分析 被引量:5
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作者 何双双 《中国卫生资源》 北大核心 2021年第3期263-267,共5页
目的对公立医院数字减影血管造影(digital subtraction angiography,DSA)设备进行成本效益分析,结合社会效益评价,为设备采购和管理提供科学依据。方法采用投资回收期法、投资收益率法、量本利分析法和净现值法对数字减影设备进行成本... 目的对公立医院数字减影血管造影(digital subtraction angiography,DSA)设备进行成本效益分析,结合社会效益评价,为设备采购和管理提供科学依据。方法采用投资回收期法、投资收益率法、量本利分析法和净现值法对数字减影设备进行成本效益分析,运用模糊数学法建模和指标评分法进行社会效益评价。结果公立医院数字减影设备包括DSA数字血管造影机、DSA全数字化平板探测器血管造影机、血管造影X线系统,其中:血管造影X线系统投资收益率最高为19.07%,投资回收期仅2.80年,运行效益评价为优秀;DSA全数字化平板探测器血管造影机A的经济指标最低,原因在于其业务量仅达保本工作量的83.91%,但其社会效益评分最高(C值为7.3)。结论公立医院在采购和管理数字减影等大型设备时需进行充分的成本效益分析论证,兼顾公立医院的公益性和科研属性,实行经济效益和社会效益双评价。 展开更多
关键词 数字减影血管造影设备digital subtraction angiography equipment 成本效益cost-effectiveness 社会效益social benefit 投资回收期法investment payback period method 投资收益率法rate of return on investment method 量本利分析法volume-cost-profit analysis method 净现值法net present value method 模糊数学法fuzzy mathematics method 指标评分法index scoring method
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Multi-voltage X-ray image sequence fusion based on selection of valid region 被引量:2
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作者 WEI Jiao-tong HAN Yan CHEN Ping 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2016年第4期358-362,共5页
A key step is to extract valid information region in the fusion of multi-voltage X-ray image sequence for complicated components. To improve the self-adaption of extraction, a method is presented in this paper. In thi... A key step is to extract valid information region in the fusion of multi-voltage X-ray image sequence for complicated components. To improve the self-adaption of extraction, a method is presented in this paper. In this paper, the valid informa-tion region is selected by the grey level interval, which is computed by the optimization of image quality evaluation model. The model is based on the histogram equalization and the grey level interval. Then, every valid region of images at different voltages is extracted and they are fused according their grey level transformation function. The fusion image contains completed struc-ture information of the component. The fusion experiment of a cylinder head shows the effectiveness of the presented method. 展开更多
关键词 multi-voltage X-ray image fusion valid regioncylinder head shows the effectiveness of the presented method.
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