| 薛浩,贾文霄,程敬亮,朱伟,时松和,张勇,杨梦焘.MRI设备可靠性评价指标体系的构建[J].中国医学影像技术,2020,36(1):134~137 |
| MRI设备可靠性评价指标体系的构建 |
| Construction of evaluation index system for reliability of MR equipment |
| 投稿时间：2019-06-03 修订日期：2019-07-12 |
| DOI：10.13929/j.issn.1003-3289.2020.01.037 |
| 中文关键词: 磁共振成像 可靠性 层次分析法 德尔菲法 指标体系 |
| 英文关键词:magnetic resonance imaging reliability analytic hierarchy process Delphi method index system |
| 基金项目:国家重点研发计划课题（2016YFC0106900、2016YFC0106903）。 |
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| 中文摘要: |
| 目的 构建MRI设备可靠性评价指标体系并确定各级指标权重，为客观定量评价不同厂家不同型号MRI设备提供标准。方法 采用文献分析法和德尔菲（Delphi）法选取指标，以层次分析法计算各级指标权重。结果 两轮专家咨询问卷回收率分别是91.30%（21/23）和93.75%（30/32），专家权威系数分别为0.89和0.98，专家咨询的重要性协调系数分别为0.524、0.632、0.404（P均<0.001），可行性协调系数分别为0.259、0.209、0.216（P均<0.001）。最终构建包含2个一级指标、6个二级指标和31个三级指标的三级评价指标体系，各级指标均通过一致性检验。结论 构建的MR设备可靠性评价指标体系具有较好的科学性和适用性，可为评价和持续改进MR设备可靠性提供量化依据。 |
| 英文摘要: |
| Objective To establish an evaluation index system for reliability of MR equipment, and to observe the weights of all indicators, so as to provide standards for objective and quantitative evaluation of different types of MR equipment. Methods The indicators were selected by using literature analysis and Delphi method, and the weights of indicators (W) were calculated using analytic hierarchy process. Results The questionnaire recovery rates for two rounds of expert consultation were 91.30% (21/23) and 93.75% (30/32), and authority coefficient were 0.89 and 0.98, respectively. The Kendall's W of indicators' importance at all levels were 0.524, 0.632 and 0.404 (all P<0.001), while of indicators' feasibility were 0.259, 0.209 and 0.216, respectively (all P<0.001). A three-level evaluation index system was established with 2 first-level indicators, 6 second-level indicators and 31 third-level indicators and passed the consistency test. Conclusion The evaluation index system of MR equipment reliability is scientific and applicable, which may provide a quantitative basis for evaluation and continuous improvement of reliability of MR equipment. |
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