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Indexing Thoracic CT Reports Using a Preliminary Version of a Standardized Radiological Lexicon (RadLex)

机译：使用标准放射学词典（RadLex）的初版对胸腔CT报告编制索引

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摘要

Introduction: To validate a preliminary version of a radiological lexicon (RadLex) against terms found in thoracic CT reports and to index report content in RadLex term categories. Material and Methods: Terms from a random sample of 200 thoracic CT reports were extracted using a text processor and matched against RadLex. Report content was manually indexed by two radiologists in consensus in term categories of Anatomic Location, Finding, Modifier, Relationship, Image Quality, and Uncertainty. Descriptive statistics were used and differences between age groups and report types were tested for significance using Kruskal–Wallis and Mann–Whitney Test (significance level <0.05). Results: From 363 terms extracted, 304 (84%) were found and 59 (16%) were not found in RadLex. Report indexing showed a mean of 16.2 encoded items per report and 3.2 Finding per report. Term categories most frequently encoded were Modifier (1,030 of 3,244, 31.8%), Anatomic Location (813, 25.1%), Relationship (702, 21.6%) and Finding (638, 19.7%). Frequency of indexed items per report was higher in older age groups, but no significant difference was found between first study and follow up study reports. Frequency of distinct findings per report increased with patient age (p < 0.05). Conclusion: RadLex already covers most terms present in thoracic CT reports based on a small sample analysis from one institution. Applications for report encoding need to be developed to validate the lexicon against a larger sample of reports and address the issue of automatic relationship encoding.
机译：简介：对照在胸部CT报告中找到的术语来验证放射词典（RadLex）的初步版本，并为RadLex术语类别中的报告内容建立索引。材料和方法：使用文本处理器从200个胸部CT报告的随机样本中提取术语，并与RadLex进行匹配。报告内容由两名放射科医生以人工方式在解剖学位置，发现，修饰符，关系，图像质量和不确定性等术语类别中进行了索引编制。使用描述性统计数据，并使用Kruskal-Wallis和Mann-Whitney检验检验年龄组和报告类型之间的差异（显着性水平<0.05）。结果：从提取的363个术语中，在RadLex中发现304个（84％），未发现59个（16％）。报告索引显示每个报告平均有16.2个编码项目，每个报告有3.2个结果。编码最频繁的术语类别是修饰词（3,244中的1,030，占31.8％），解剖位置（813，25.1％），关系（702，21.6％）和发现（638，19.7％）。在老年组中，每份报告的索引项目出现频率更高，但首次研究和随访研究报告之间没有发现显着差异。每个报告中不同发现的频率随患者年龄而增加（p <0.05）。结论：RadLex已经根据一家机构的少量样本分析，涵盖了胸部CT报告中存在的大多数术语。需要开发用于报告编码的应用程序，以针对较大的报告样本来验证词典并解决自动关系编码的问题。

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  • 来源
    《Journal of Digital Imaging》 |2008年第4期|363-370|共8页
  • 作者

    Dirk Marwede; Thomas Schulz; Thomas Kahn;

  • 作者单位

    Department of Diagnostic and Interventional Radiology University Leipzig Liebigstr. 20 04103 Leipzig Germany;

    Department of Diagnostic and Interventional Radiology University Leipzig Liebigstr. 20 04103 Leipzig Germany;

    Department of Diagnostic and Interventional Radiology University Leipzig Liebigstr. 20 04103 Leipzig Germany;

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  • 正文语种 eng
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  • 关键词

    Reporting; classification; chest CT; terminology;

    机译：报告;分类;胸部CT;术语;

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