| 田彦鹏,嵇志刚,尚家璐,等.陕西省核医学资源公平性与诊疗频次研究[J].中华放射医学与防护杂志,2026,46(9):856-864.Tian Yanpeng,Ji Zhigang,Shang Jialu,et al.Study on equity of nuclear medicine resources and service frequency in Shaanxi province[J].Chin J Radiol Med Prot,2026,46(9):856-864 |
| 陕西省核医学资源公平性与诊疗频次研究 |
| Study on equity of nuclear medicine resources and service frequency in Shaanxi province |
| 投稿时间：2025-05-06 |
| DOI：10.3760/cma.j.cn112271-20250506-00159 |
| 中文关键词: 核医学 资源配置 诊疗频次 公平性 基尼系数 |
| 英文关键词:Nuclear medicine Resource allocation Service frequency Equity Gini coefficient |
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| 中文摘要: |
| 目的 分析陕西省核医学资源配置的区域差异及诊疗频次特征，评估其公平性，为优化区域核医学服务提供依据。方法 基于2024年陕西省核医学普查数据，采用洛伦兹曲线、基尼系数和泰尔指数，对10个地级市的设备配置、人员分布及诊疗量进行多维度公平性分析。结果 全省共25家核医学机构，其中仅开展诊断业务的机构12家，同时开展诊断与治疗业务的机构13家，无单独开展治疗业务的机构；仅9家机构开展131I治疗，131I年总使用量为5.146×1012 Bq。共配置核医学设备49台，包括正电子发射计算机断层扫描（PET）18台、单光子发射计算机断层扫描（SPECT）25台，核医学工作人员344人，其中西安市集中了全省61.2%的设备和68.9%的工作人员；全年开展核医学诊断91 479人次，治疗8 220人，诊断频次2.31人次/千人口，治疗频次0.21人/千人口。公平性分析显示，基于人口分布的核医学设备、工作人员、核医学诊断和核医学治疗的基尼系数分别为0.385、0.431、0.442和0.560，泰尔指数分别为0.524 1、0.592 5、0.772 8和1.382 5，表明核医学设备配置相对合理（基尼系数<0.4），但诊疗服务公平性较差；泰尔指数分解结果表明，93.1% ~ 97.9%的核医学资源配置差异来源于区域内部不均衡。结论 陕西省核医学资源呈现“单极集聚”特征，诊疗服务公平性显著不足，需通过跨区域协作和精准资源倾斜政策优化配置。 |
| 英文摘要: |
| Objective To analyze city-to-city disparity of nuclear medicine resource allocation and service frequency in Shaanxi province, and evaluate their equity to provide evidence for optimizing the nuclear medicine services in the province.Methods Based on the 2024 nuclear medicine census data of Shaanxi province, the Lorenz curves, Gini coefficients, and Theil indices were employed to conduct a multidimensional equity analysis of equipment allocation, distribution of staff, and amount of service across 10 prefecture-level cities.Results There are 25 nuclear medicine institutions in the province, including 12 institutions that only offer diagnostic services, 13 institutions providing both diagnosis and treatment, and no one that only offer treatment service. Only 9 of these institutions offer 131I therapy, with a total annual usage of 131I of up to 5.146×1012 Bq. These institutions are equipped with 49 nuclear medicine devices, including 18 PET scanners and 25 SPECT scanners, and 344 nuclear medicine staff, with 61.2% of the devices and 68.9% of the staff concentrated in Xi′an city. Annual nuclear medicine diagnostic procedures were 91479 and therapeutic procedures 8220 in total, with diagnostic frequency of 2.31 per 1 000 population and treatment frequency of 0.21 per 1 000 population. The index decomposition showed that 93.1%-97.9% of nuclear medicine resource disparity originated from the internal imbalances in the province.Conclusions Nuclear medicine resources in Shaanxi exhibit a monopolar aggregation pattern with significantly inadequate service equity. The cross-city collaboration and targeted resource allocation policies among provinces are needed to optimize distribution of resources. |
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