以 Arden 语法编码的临床决策支持系统知识库的演变
Evolution of a knowledge base for a clinical decision support system encoded in the Arden Syntax.
作者信息
Jenders R A, Huang H, Hripcsak G, Clayton P D
机构信息
Department of Medical Informatics, Columbia University, New York, New York, USA.
出版信息
Proc AMIA Symp. 1998:558-62.
Clinical decision support systems (CDSS) are being used increasingly in medical practice. Thus, long-term maintenance of the knowledge bases (KB) of such systems becomes important. To quantify changes that occur as a KB evolves, we studied the KB at the Columbia-Presbyterian Medical Center. This KB has a total of 229 Medical Logic Modules (MLMs) encoded in the Arden Syntax. Eliminating those never used in practice, we retrospectively analyzed 156 MLMs developed over 78 months. We noted 2020 distinct versions of these MLMs that included 5528 changed statements over time. These changes occurred primarily in the logic slot (38.7% of all changes), the action slot (17.8%), in queries (15.0%) and in the data slot exclusive of queries (12.4%). We conclude that long-term maintenance of a KB for a CDSS requires significant changes over time. We discuss the implications of these results for the design of KB editors for the Arden Syntax.
临床决策支持系统（CDSS）在医疗实践中的应用越来越广泛。因此，此类系统知识库（KB）的长期维护变得至关重要。为了量化知识库演变过程中发生的变化，我们对哥伦比亚长老会医学中心的知识库进行了研究。该知识库共有229个按照 Arden 语法编码的医学逻辑模块（MLM）。在剔除那些从未在实践中使用过的模块后，我们对78个月内开发的156个MLM进行了回顾性分析。我们注意到这些MLM有2020个不同版本，随着时间推移包含5528条变更语句。这些变更主要发生在逻辑插槽（占所有变更的38.7%）、操作插槽（17.8%）、查询（15.0%）以及不包括查询的数据插槽（12.4%）。我们得出结论，为CDSS的知识库进行长期维护需要随着时间推移进行重大变更。我们讨论了这些结果对 Arden 语法知识库编辑器设计的影响。
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