Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Kreuzthaler, M; Schulz, S; Berghold, A.
Secondary use of electronic health records for building cohort studies through top-down information extraction.
J Biomed Inform. 2015; 53: 188-195.
Doi: 10.1016/j.jbi.2014.10.010
[OPEN ACCESS]
Web of Science
PubMed
FullText
FullText_MUG
- Leading authors Med Uni Graz
- Kreuzthaler Markus Eduard
- Co-authors Med Uni Graz
- Berghold Andrea
- Schulz Stefan
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Controlled clinical trials are usually supported with an in-front data aggregation system, which supports the storage of relevant information according to the trial context within a highly structured environment. In contrast to the documentation of clinical trials, daily routine documentation has many characteristics that influence data quality. One such characteristic is the use of non-standardized text, which is an indispensable part of information representation in clinical information systems. Based on a cohort study we highlight challenges for mining electronic health records targeting free text entry fields within semi-structured data sources. Our prototypical information extraction system achieved an F-measure of 0.91 (precision=0.90, recall=0.93) for the training set and an F-measure of 0.90 (precision=0.89, recall=0.92) for the test set. We analyze the obtained results in detail and highlight challenges and future directions for the secondary use of routine data in general. Copyright © 2014 Elsevier Inc. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
- Algorithms -
- Cohort Studies -
- Computer Graphics -
- Data Mining - methods
- Databases, Factual -
- Electronic Health Records -
- Electronic Health Records -
- Humans -
- Information Storage and Retrieval - methods
- Medical Informatics - methods
- Natural Language Processing -
- Reproducibility of Results -
- Research Design -
- Software -
- Software -
- User-Computer Interface -
- Find related publications in this database (Keywords)
- Information extraction
- Secondary use
- Clinical narrative