Design and Implementation of Electronic Medical Record System Based on HL7-CDA for the Exchange of Clinical Information

임상 정보교환을 위한 HL7-CDA 기반의 전자의무기록 시스템의 설계 및 구현

  • 조익성 (부산대학교 바이오정보전자공학과) ;
  • 권혁숭 (부산대학교 바이오정보전자공학과)
  • Published : 2008.05.31

Abstract

For the sharing and exchange of information between medical clinics, the clinical document has to be built on a standardized protocol such as a HL7-CDA. But it is difficult to exchange information between medical clinics because clinical document such as electronic medical record that include text and image, have different structure of document and type of expression. In this paper, we propose the electronic medical record system based on HL7-CDA that can share and exchange clinical information between medical institute. For this purpose, we have to design the schema of the clinical document architecture after we select the essential items of medical record and define templates. The proposed system can minimize integrating process and save parsing time when clinical information exchange and refer, by converting electronic medical record to base64 encoding scheme and integrate it in a XML document.

임상문서는 의료기관간의 정보의 공유 및 교환을 위해 HL7-CDA와 같은 표준 프로토콜로 구축되어야 한다. 하지만 전자의무기록과 같이 텍스트와 이미지 정보를 포함한 임상문서는 의료기관마다 그 구조 및 표현 형태가 상이하여 정보를 교환하고자 할 때에 상당한 어려움이 초래된다. 따라서 의료기관간 효율적인 임상정보 교환을 위해 전자의무기록은 생성 및 관리가 쉽고 통일된 형태의 문서구조를 가져야 할 뿐 아니라 문서의 참조 및 교환 시간을 최소화하는 것이 중요하다. 본 논문에서는 의료기관간의 임상정보 교환을 위해 경과기록지의 필수 항목을 규정하여 템플릿을 정의한 후 스키마를 설계함으로써, 정보를 공유하고자 하는 외부기관과의 자료 교환 및 관리가 가능한 HL7-CDA 기반 전자의무기록 시스템을 제안한다. 제안된 시스템은 다양한 혼합요소를 가진 전자의무기록 서식을 base64 인코딩으로 변환, XML 문서 안에 통합함으로써 의료기관간 문서의 참조나 교환시 통합과정이나 파싱시간을 최소화할 수 있다.

Keywords

References

  1. Chang.Y.J, Lai.J.S, Cheng.P.H, Lai.Faipei, "P ortable CDA for the exchange of clinical doc uments", e-Health Networking, Application an d Services, 2007 9th International Conferenc e, pp.1-5, 2007
  2. N. F. de Keizer and A. Abu-Hanna, "Underst anding terminological systems. II: Experienc e with conceptual and formal representation o f structure," Methods Inf Med, Vol.39, pp.22-29, 2000 https://doi.org/10.1055/s-0038-1634258
  3. Phillipe Kruchten, "The Rational Unified Proc ess: An Introduction", Addison Wesley, ISBN 0-20-170710-1
  4. C. Larman, "Applying UML and Patterns", 2 nd Edition, Prentice Hall PTR, ISBN-13-0925 69-1
  5. I.Bilykh, J.H.Jahnke, G.McCallum, M.Price, "Using the Clinical Document Architecture as open data exchange format for interfacing E MRs with clinical decision support systems," The 19th IEEE Symposium on Computer-Base d Medical Systems, pp.855-860, 2006
  6. J.M.Fisk, P.Mutalik, et al., "Integrating query of relational and textual data in clinical datab ases: a case study," J Am Med Inform Assoc, Vol.10, No.1, pp.21-38, 2003 https://doi.org/10.1197/jamia.M1133
  7. K.U.Heitmann, R.Schweiger, and J.Dudeck, "Discharge and referral data exchange using g lobal standards," International Journal of Med ical Info., Vol.70, No.1, pp.195-203, 2003 https://doi.org/10.1016/S1386-5056(03)00036-4
  8. R.H.Dolin, L.Alschuler, C.Beebe, et al., "The HL7 clinical document architecture," Proc A MIA Symp, pp.552-569, 2001
  9. J.M.Ferranti, R.C.Musser, K.Kawamoto, et al., "The Clinical Document Architecture and the Continuity of Care Record: A Critical Analysi s," Journal of the American Medical Informat ics Association, Vol.13, No.3, pp.245-252, Ma y/Jun 2006 https://doi.org/10.1197/jamia.M1963
  10. H.B.Bludau, A.Wolff, A.J.Hochlehnert, "Prese nting XML-based medical discharge letters ac cording to CDA," Methods Info Med, Vol.42, No.5, pp.552-555, 2003 https://doi.org/10.1055/s-0038-1634382
  11. H.S.Kim, T.Tran, H.Cho, "A clinical docume nt architecture (CDA) to generate clinical doc uments within a hospital information system f or e-healthcare services," The Sixth IEEE Inte rnational Conference on Computer and Infor mation Technology, pp.254-254, 2006
  12. Koncar. M, Mrkonjic. G, Tonkovic. S, "Multi media Content Management with HL7v3 Mes sages", Multimedia Signal Processing and Co mmunications, 48th International Symposium ELMAR-2006, pp.293-296. 2006