H6 updated.H10 updated: the investigation was completed by conducting a thorough evaluation of the product and the reported information.The customer reported as issue with mosaiq not recording the delivered dosage (mus - monitor units) that the patient received during treatment.Investigation of the mosaiq logs found that in a treatment plan that was delivered with composite field sequencing, a network error occurred (after the first two fields were delivered), on a move only segment, causing a communication error between the citrix server and sequencer.The network error resulted in all delivered monitor units being incorrectly recorded for the first field and zero monitor units being recorded for the second field (recording issue).The user received a warning that more monitor units (mus) than expected were delivered to the first field.In addition, a second warning was presented informing the user that a network error had occurred and any treatment recordings should be verified.The user would also receive dose warnings as well when selecting to treat the second field and the remainder of the fields in the session.Despite the warnings presented by mosaiq the user, re-selected the dosage for the field that had recorded zero monitor units.Based upon the information available this additional dosage to the patient has been assessed by elekta physics as insignificant.The root cause for this issue was determined to be use error.
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