SIEMENS brand ARTISTE syngo RT Therapist (RTT) version 4.3, ARTISTE Model, Part No. 08162815, Digital linear accelerators, MOSAIQ OIS system, Distributed by SIEMENS Healthcare IM CR RO, CR Radiation Oncology, Manufactured by SIEMENS AG, MEDICAL SOLUTIONS, GERMANY.

Reason: Siemens became aware of a potential safety issue when using the "In-session resumption" feature of the syngo RT Therapist (RTT) 4.3 software. The RTT will send again the previously completed beam or segment for delivery to the control console, thus repeating the already delivered Monitor Units of the same beam or segment.

Code information: All codes/units of ARTISTE model.

Distribution pattern: 5 devices, all located outside of the United States in Germany.