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Health Services Research & Development

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VA Informatics and Computing Infrastructure

VINCI ChartReview/eHOST (Annotation tool)

by Olga Patterson, PhD
Seminar date: 10/1/2015

Description: ChartReview Chart Review is a manual, multi-level annotation tool permitting annotation of both structured and unstructured information from the patient medical record.. Its configurable medical record interface, allows annotation at any level of the record (e.g., notes, bill codes, lab values) supporting concept, document, and patient-level review and annotation. Chart Review displays all aspects of a medical record, from any database environment. Though Chart Review was built to specifically allow its use in the VINCI research environment (taking into account the VINCI project database configuration and policies), it can be used in any database environment where medical records may be kept. Access to the data layer is configurable in the UI, allowing the tool to access any database environment, with any database schema definition. eHOST Annotation system that provides an open-source stand-alone client for manual annotation of clinical texts.The eHOST annotation tool has been used by several institutions and projects for a variety of tasks, including both the 2010 and 2011 i2b2/VA Challenges, annotation tasks for the Consortium for Healthcare Informatics Research (CHIR) projects. This annotation tool supports annotation of concepts, their attributes, and relations between concepts. The tool has the ability to 1) generate and pre-annotate texts using dictionaries, 2) provide machine-assisted annotation using real-time string machine to represent concepts, 3) support encoding of standard clinical vocabularies such as the UMLS and SNOMED-CT with fast API calls and query, and 4) compute inter-annotator agreement using flexible match criteria. eHOST is also reads/writes annotations from/to Knowtator-formatted xml files.

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