Advertisement: Preregister now for the Medicine 2.0 Congress

Article Thumbnail
Members can download this full article for Adobe PDF Format.
Membership provides unlimited access to all PDF files.
Or, ask your department head to become an institutional member.

For tax purposes please select your country and if applicable state/province of residence:
Buy Now (Pay-per-download for non-members):
Download Price (USD): $22.00


TME7/366: Borderless Teleradiology with CHILI

U Engelmann; A Schroeter; M Schwab; U Eisenmann; H P. Meinzer

German Cancer Research Center, Heidelberg, Germany


Introduction: The CHILI software family started as a dedicated teleradiology system, known under the name MEDICUS. The second generation teleradiology system CHILI has then been designed to match the teleradiology requirements of the ACR and the needs of the MEDICUS users. The experience of software developers and teleradiology users of the first years of clinical use have been integrated into the new design which started in 1996. This paper describes the general system design and applications areas.
Methods: The system is based on a component based architecture. The most powerful communication protocol for data exchange and teleconferencing is the CHILI protocol which includes a strong data security concept. This includes all measures which are necessary to comply with German and European requirements and law. But it cannot be expected that all communication partners have the same teleradiology system. CHILI offers additional communication Methods:
  1. The DICOM protocol allows the exchange of images with all other DICOM compliant systems.
  2. Classical e-mail (SMTP protocol) can be used to send images DICOM or JPEG encoded.
  3. Remote copy functions from host to host.
  4. File transfer protocol (ftp).
These transfer methods enable the CHILI user to send images nearly to everybody with a computer and a network. Drawbacks are that teleconferences are not possible and that the user has to take reasonable precautions for data privacy and security. As users do always need more functionality than a system can provide, we designed the CHILI PlugIn mechanism. Users can extend the system by powerful image post-processing functions or interfaces to other information systems. PlugIns can be existing programs or be programmed with interfaces to the CHILI components. The developer is free in his choice of programming languages and interface toolkits.
Results: The CHILI architecture is a powerful and flexible environment for PACS and teleradiology. More than 40 systems are currently running in clinical routine in Germany. More than 250 thousand images have been distributed between the communication partners in the last two years. The feedback and suggestions of the users influenced the system architecture by a great extent.
Discussion: Current limitations of teleradiology are still vendor dependent communications protocols. DICOM is a start for platform independence. But it still lacks many aspects, such as teleconferencing or data security and privacy. The proposed and implemented systems tries to be as platform independent, open, and as secure as possible.

(J Med Internet Res 1999;1(suppl1):e114)


Teleradiology; PACS; Privacy; Teleconferencing; CHILI

Edited by G. Eysenbach; This is a non-peer-reviewed article. published 19.09.99

Please cite as:
Engelmann U, Schroeter A, Schwab M, Eisenmann U, P. Meinzer H
TME7/366: Borderless Teleradiology with CHILI
J Med Internet Res 1999;1(suppl1):e114
doi: 10.2196/jmir.1.suppl1.e114

Export Metadata:
END, compatible with Endnote
BibTeX, compatible with BibDesk, LaTeX
RIS, compatible with RefMan, Procite, Endnote, RefWorks

Add this article to your Mendeley library
Add this article to your CiteULike library


Except where otherwise noted, articles published in the Journal of Medical Internet Research are distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.