MOSAIQ User's Guide - UCSF Radiation Oncology

MOSAIQ User’s Guide
Appendix B: Warnings and Cautions in
MOSAIQ
MOSAIQ Treatment Warnings
The SEQUENCER verify and record system is primarily a quality assurance and recording
tool. The purpose of SEQUENCER is to help therapists deliver treatments to patients.
SEQUENCER checks setup parameters and records actual treatment data. SEQUENCER is
not a substitute for the many checks that a therapist or the linac makes before and during
treatment to make sure that the patient is setup and treated according to plan. During the
course of treatment, SEQUENCER shows appropriate warning messages that alert the user
to situations in which improper use of the system could result in potential safety hazards.
Whenever you see a warning message, carefully read the description of the potential safety
hazard and the actions to take to avoid compromising the quality of the treatment.
Remember the following when reading SEQUENCER Messages:
SEQUENCER only verifies field parameters within the tolerances established by the
department and selected for the field. Do NOT rely on SEQUENCER to verify the
patient and linac setup position. Check the treatment setup against the parameters in
the Treatment Field Definition.
SEQUENCER receives the actual position and console setting information from the
electronic readouts on the treatment machine. If the electronic readouts are incorrect,
then the information SEQUENCER receives is also incorrect.
Never override a treatment field parameter before you know why the parameter
must be overridden. An out-of-tolerance parameter does not necessarily mean that
the treatment setup is incorrect.
Always verify the treatment setup using an alternative method or methods in
addition to SEQUENCER.
After beaming on the linac, SEQUENCER cannot turn the beam off. You must
closely monitor the linac and the patient during treatment and should not look at the
SEQUENCER screen.
Copyright 2010, Elekta Impac Software 281
LUGMSQ0002/4.0/23-Sep-2010