Resubmission of initial report due to report code error.No patient rescans were required as the lost studies were obtained prior to august 31, 2016, therefore the data had been already assessed and used for clinical diagnosis prior to the date of the incident ((b)(6) 2016).However, siemens considers this incident an adverse event as the data older than 4 weeks may still have clinical relevance and be used by radiologists for comparison to images received during newer patient examinations.The clinical impact of this inhibited comparison is assessed as low.(b)(6).
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October 5, 2016 siemens became aware of data loss at the customer's site in (b)(6).The short term storage (sts) attached to the siemens syngo.Plaza system got corrupted due to a handling error during routine maintenance of the hard disc unit (raid) on the sts.During exchange of the hard disc, the configuration was lost; therefore data stored on the raid became no longer available on the sts.However, not all of the data was completely lost due to redundancy in the setup of the syngo.Plaza environment at this site: · a large amount of data lost on the sts has been archived on the long term storage (lts) attached to the syngo.Plaza unit.Thus this data is still available to the user.· a separate subset of the data, which was previously stored on the sts prior to the incident, was found on the scanners where it had been initially created.This data was re-sent to the sts and is available to the user as well.· in total 64 series containing 43 studies were permanently lost.This data was obtained between april and august 2016.Siemens syngo.Plaza system did not contribute to the data loss.There are no injuries and no negative impact has been reported by the customer.
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