When editing the isocenter or the couch position of the plan while in the treatment workflow (in the Points screen) and re-optimizing, the software will not prompt the user to shift the couch to the new isocenter. As a result there is the potential to deliver dose to the initial isocenter rather than the new location.
Viewray Incorporated
Class I - Dangerous
The system loaded a completion fraction in the incorrect order after a treatment interruption.
ViewRay discovered that in the event that an encoder breaks or fails on the Patient Handling System (PHS, or couch), when attempting to restart the system, the couch could move unexpectedly.
ViewRay received a report that the couch moved unexpectedly into the bore after performing a RTCS reboot.
The software was failing to determine new patient locations if imaging is not enabled during treatment.
Class I - Dangerous
The software was not correctly using the RT (Radiation Therapy) to MR (Magnetic Resonance image) coordinate correction for non HFS (Head First Supine) patient orientations, resulting in slice mismatch error.