Distributed querying of clinical documents modeled as HL7 version 3 standard
Abstract
We present a software tool called Collaborative Data Network (CDN) for
distributed querying of clinical documents modeled using HL7 v3 standard (e.g., Clinical
Document Architecture). HL7 Version 3 standard was developed to enable semantic
interoperability in healthcare data interchange. XML is used to encode the data. In this
thesis, we focus on the design, implementation, and evaluation of three key components
in CDN. The first component supports distributed XQuery processing in a peer-to-peer
network once the publishers of relevant documents are known. The second component
enables secure exchange of messages and data during query processing by applying wellknown
cryptographic techniques. This is necessary for HIPAA compliance. Third
component provides a user interface for posing clinical queries by clinicians and
researchers. A comprehensive performance evaluation of CDN has been conducted on a
local cluster using real-world clinical discharge summaries that were modeled using HL7
CDA standard.
Table of Contents
Introduction -- Background and motivations -- Collaborative data network -- Distributed processing of XQuery -- Security -- User interface -- Sample queries -- Implementation and performance evaluations -- Conclusion and future work
Degree
M.S.