• Hans Theodor Eich, Rolf-Peter Müller, Angelika Schneeweiss, Katja Hansemann, Robert Semrau, Normann Willich, Christian Rübe, Susanne Sehlen, Margit Hinkelbein, and Volker Diehl.
• Department of Radiation Oncology, University of Cologne, Cologne, Germany. hans.eich@gmx.de
• Int. J. Radiat. Oncol. Biol. Phys. 2004 Mar 1; 58 (3): 805-8.

PurposeDeviations of radiation treatment portals and dose from prospective treatment plans are unfavorable prognostic factors for lymphoma patients. Therefore, an extensive radiotherapy quality assurance program is used in the ongoing German lymphoma studies. The introduction of teleradiotherapy offered the opportunity to optimize and simplify the workflow of these quality assurance programs. The purpose of this report was to evaluate the feasibility of teleradiotherapy and to describe our experiences with these innovative tools.Methods And MaterialsDuring this pilot phase, five radiotherapy centers were equipped with the hardware and software that guarantees a rapid and high-quality transfer of imaging data, as well as real-time teleconferences. The workstation consists of standard PCs with Windows NT as the operating system and the commercial telemedicine software Hipax.ResultsAs a first step, imaging communication between the radiotherapy reference centers in Cologne and Homburg/Saar was established. Subsequently, three additional radiotherapy departments (Universities of Berlin, Münster, and Munich) with large numbers of lymphoma patients were connected. Other study centers delivered digital imaging on mobile data carriers or via an Integrated Services Digital Network point-to-point connection. Communication units were completed for interactive teleconferences. A facility for central online documentation was installed. Telemedical functions were integrated into the ongoing radiotherapy quality assurance program. Since the introduction of a teleradiotherapeutic workstation in the radiotherapy reference center in Cologne in January 2001, the images of 10% (n = 228 patients) of all reviewed cases of the ongoing Hodgkin's disease 10-12 trials were delivered digitally. The amount of digitally available imaging is continuously increasing.ConclusionThe introduction of teleradiotherapy improved the dialog between the radiotherapy reference centers and study centers and thus contributed toward high radiotherapy quality for lymphoma patients in Germany.

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